SlideShare uma empresa Scribd logo
1 de 21
Rosedith S. Familar
Title card 1
p. 5
Guide Card 1-4
pp. 2-4, 6
?
Activity Card 1-2
pp. 7-8
Activity Card 3
p. 9
Activity Card 4
p. 10
Activity Card 5
p. 11
Activity Card 6
p. 12
Assessment Card 1-2 pp. 13-14
Answer Card 1-2 pp. 15-16
Enrichment Card 1-2 pp. 17-18
Reference Card 1-2 pp. 19
CONTENT
STANDARDS
PERFORMANCE
STANDARDS
LEARNING
COMPETENCY
Demonstrates
understanding of
the four
fundamental
operations
involving ratio and
proportion
Is able to apply
the four
fundamental
operations
involving ratio and
proportion in
mathematical
problems and
real-life situations
Finds the missing
term in a pair of
equivalent ratios.
(M5NS-IIi-126)
MAIN TASK
Find the missing term in a
pair of equivalent ratios
(M5NS-IIi-126)
SUB-TASKS Identify the pattern for a set
of numbers
Use butterfly method in
multiplying numerators and
denominators of fraction
Use skip counting to find
equivalent fractions
Reduce fractions
to lowest term
G
U
I
D
E
C
A
R
D
1
GUIDE CARD 2
Forms equivalent fractions
Defines ratio and proportion
Uses the concept of ratio and
proportion in decision-making
Determines equality of two ratios
Assesses own skills in forming
equivalent ratios
Makes equation involving equal
ratios
BLOOM’S
TAXONOMY
GUIDE CARD 3
Kaluha Madayaw!
Hi kids!
I’m Kimi.
And I’m
Dora.
Hi kids! I’m Kim.
We are twins.
TITLE CARD 1 My Twinnie’s Missing!
It was just
Two hours back when
Kimi and I played
hide and seek here. But
when I came back, I couldn’t
find her anymore and
all that’s left is a piece
of her slippers and
a note. Can you help
me find her?
I’m glad to help,
Dora. Then, let’s
Form Task Force
Twinnie!
GUIDE CARD 4
Text
Just follow the trail of fallen leaves and
you’ll find Kimi.
Friends along your way may either offer or
ask for help.
You’ll go through mathematical tests to get
going.
Every wrong answer will block the next
path.
The Abductor
The note says:
ACTIVITY CARD 1 Off to Sitio Andapon Jungle
Hello, fellas! I’m
your friend Momoy. My
master asks you to help me
solve my problem before
you can enter Sitio
Andapon jungle.
If my brother
gives me 3 bananas
for every 9 bananas that
he has, how many
bananas will I have
if he has 18?
ACTIVITY CARD 2
Momoy, you need to
assign the number of
bananas you and your
brother are supposed to
receive in a fraction
form
You
Your
brother
3
___
9
=
18
___
To find the missing term, you can skip count the number
of times you do from 9 to 18. How many step is it from 9
to 18? Yes, you took 1 step. Now skip count 1 time from
3. There you get 6!
6
Six bananas await you! We’re glad we’re
able to help you.
#Jungle Intruders
ACTIVITY CARD 3
I heard from my friends
that there are 20
grasshoppers as there
are 5 of us. How many
grasshoppers are there if
we are 25 in count now?
Kaba-kaba, you can
draw yourself to
answer your own
question. Here, we’ll
show you.
5
____
20
=
n
___
25
x
Step 1
Step 2
Step 1
=
Step 2
5xn 500 Step 3 (transpose 5 to
the other side to leave n alone.)
I knew it! If 5 travels across = sign
which serves as the bridge, it gets
lost that it needs to reverse its
cloth (operation) just like humans
when lost in the woods.
n = 500÷5
n = 100
Very good! Yes, there
are 100 grasshoppers
now that there are 25
butterflies.
A Step in Dasubo Butterfly Sanctuary
ACTIVITY CARD 4 Piko time in Magobahong Plateau!
Hey, buddies! I wonder how many
eggs will I hatch? Can you tell?
Last time I laid 8 eggs, I hatched 2.
Now I have 24. How do I calculate?
LAID EGGS HATCHED EGGS
8 2
16 4
24 6
Kulasisi, we do that in a
piko grid.
Just like hopscotching
(piko), we skip and count
all the way down to the
goal.
ACTIVITY CARD 5 Fishes in Pair
Tatay told me to catch
biya (bunog) and
banak in the ratio of
5:8. Now that I
already have 15 biya,
how many heads of
banak do I need to
have so that I can go
home?
You need to form your data in
an equation of ratios such that
biya:banak = banak:biya (or
extreme:mean =
mean:extreme). Now,
substitute.
5:8 = 15: ____
Which has now the complete
set, biya or banak?
Biya at 5 and 15.
Right! Now, what is the
pattern? Is 5 multiplied
or divided by what
number to get 15?
Multiplied by 3.
Do the same to 8 now.
Multiply 8 by 3.
I see. That
means, I need
to catch 24
banak to get
done with my
fishing. Thanks,
pals!
You’re
welcome,
buddy!
Great job!
ACTIVITY CARD 6 All the same
Equivalent ratios
are just like two
identical balloons,
one is either
inflated or deflated
though started
out at same size.
Just like Activity #5,
we just look for
the pattern.
Yahoo!
It’s fiesta time!
7
___
9
=
49
___
smaller to bigger
Multiply
left to
right
__
120
=
8
___
10
X 7
63
bigger to smaller
multiply
right to
left
x 12
96
ASSESSMENT CARD 1 Twin to the rescue!
Solve for the missing term using appropriate
strategy.
1. 3 = 12 4. 8 = ___
7 10 100
2. 6 = __ 5. 3 = 15
8 72 55
3. 3 = 24
64
ASSESSMENT CARD 2
Twin to the rescue!
Supply the blanks with the correct
number to form equivalent ratios.
1. 6:7 = 12:_____
2. 9:2 = ___: 6
3. 15:25 = 5 :_____
4. 18:____ = 6 : 4
5.____: 20 = 10 : 2
ANSWER CARD 1 Twin to the rescue!
Solve for the missing term using appropriate
strategy.
1. 3 = 12 4. 8 = ___
7 10 100
2. 6 = __ 5. 3 = 15
8 72 55
3. 3 = 24
64
28
54
8
80
11
ANSWER CARD 2 Twin to the rescue!
Supply the blanks with the correct number to form
equivalent ratios.
1. 6:7 = 12:_____
2. 9:2 = ___: 6
3. 15:25 = 3 :_____
4. 18:____ = 6 : 4
5.____ : 20 = 10 : 2
14
18
5
12
100
Congratulations!
Continue with
your journey.
God bless you!
ENRICHMENT CARD 1 SKIP COUNT AND WRITE
ENRICHMENT CARD 2 The Goal!
I’m here with Ninong! I
wasn’t able to find you
that I went along with
him. Come, let’s enjoy!
I know you’ve come a
long way.This is your
reward!
Ninong and I had been
counting water splashes. He
counted 4 for every 2 that I
counted. I had already
counted 24 splashes. How
many of it did Ninong count,
you think?
REFERENCE CARD 1
• K to 12 Competency Code M5NS-IIi-126
• Mathematics is Fun! textbook, pp.32-34
• Teacher’s Guides pp. 126-127
• LRMDS MATH 5 (Lesson 53)
• Mathematics for a Better Life pp. 202-20
• DepEd Self-Instructional Materials # 22 (Math 5)
Thank you very much

Mais conteúdo relacionado

Semelhante a SIM MATH.ppt

Unit 1 Number Theory (5th Grade)
Unit 1 Number Theory (5th Grade)Unit 1 Number Theory (5th Grade)
Unit 1 Number Theory (5th Grade)
Renegarmath
 
Ratio And Proportion Powerpoint
Ratio And Proportion PowerpointRatio And Proportion Powerpoint
Ratio And Proportion Powerpoint
mibial
 
Math chapter 1
Math chapter 1Math chapter 1
Math chapter 1
aelowans
 
Normal distribution for statistical analysis
Normal distribution for statistical analysis Normal distribution for statistical analysis
Normal distribution for statistical analysis
Dr. Trilok Kumar Jain
 
Normal distribution for statistical analysis
Normal distribution for statistical analysis Normal distribution for statistical analysis
Normal distribution for statistical analysis
Dr. Trilok Kumar Jain
 
Amazing Math Trick
Amazing Math TrickAmazing Math Trick
Amazing Math Trick
N8 G
 

Semelhante a SIM MATH.ppt (20)

Grade 1 Session 3 Activities.pptx
Grade 1 Session 3 Activities.pptxGrade 1 Session 3 Activities.pptx
Grade 1 Session 3 Activities.pptx
 
finding the gcf (credits to the owner)
finding the gcf (credits to the owner)finding the gcf (credits to the owner)
finding the gcf (credits to the owner)
 
Unit 1 Number Theory (5th Grade)
Unit 1 Number Theory (5th Grade)Unit 1 Number Theory (5th Grade)
Unit 1 Number Theory (5th Grade)
 
Ratio And Proportion Powerpoint
Ratio And Proportion PowerpointRatio And Proportion Powerpoint
Ratio And Proportion Powerpoint
 
Whiz Kid 4th Grade Math
Whiz Kid 4th Grade MathWhiz Kid 4th Grade Math
Whiz Kid 4th Grade Math
 
Math chapter 1
Math chapter 1Math chapter 1
Math chapter 1
 
Math partners
Math partners Math partners
Math partners
 
G4ww5 8
G4ww5 8G4ww5 8
G4ww5 8
 
Normal distribution for statistical analysis
Normal distribution for statistical analysis Normal distribution for statistical analysis
Normal distribution for statistical analysis
 
Normal distribution for statistical analysis
Normal distribution for statistical analysis Normal distribution for statistical analysis
Normal distribution for statistical analysis
 
G10M-Q3-L1-Permutation-of-Objects-Grade 10.pptx
G10M-Q3-L1-Permutation-of-Objects-Grade 10.pptxG10M-Q3-L1-Permutation-of-Objects-Grade 10.pptx
G10M-Q3-L1-Permutation-of-Objects-Grade 10.pptx
 
Amazing Maths Trick
Amazing Maths TrickAmazing Maths Trick
Amazing Maths Trick
 
Amazing Math Trick
Amazing Math TrickAmazing Math Trick
Amazing Math Trick
 
Pre-Cal 40S Slides April 18, 2007
Pre-Cal 40S Slides April 18, 2007Pre-Cal 40S Slides April 18, 2007
Pre-Cal 40S Slides April 18, 2007
 
English 30.03
English 30.03English 30.03
English 30.03
 
W1-L1 Negative-numbers-ppt..pptx
W1-L1 Negative-numbers-ppt..pptxW1-L1 Negative-numbers-ppt..pptx
W1-L1 Negative-numbers-ppt..pptx
 
Jeopardy ratioproportion
Jeopardy ratioproportionJeopardy ratioproportion
Jeopardy ratioproportion
 
MATH 6 Q2 WEEK 1.pptx
MATH 6 Q2 WEEK 1.pptxMATH 6 Q2 WEEK 1.pptx
MATH 6 Q2 WEEK 1.pptx
 
Parents forum May 2018 Maths Mastery presentation
Parents forum May 2018 Maths Mastery presentationParents forum May 2018 Maths Mastery presentation
Parents forum May 2018 Maths Mastery presentation
 
Multiplication
MultiplicationMultiplication
Multiplication
 

Último

Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...
Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...
Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...
fonyou31
 
BASLIQ CURRENT LOOKBOOK LOOKBOOK(1) (1).pdf
BASLIQ CURRENT LOOKBOOK  LOOKBOOK(1) (1).pdfBASLIQ CURRENT LOOKBOOK  LOOKBOOK(1) (1).pdf
BASLIQ CURRENT LOOKBOOK LOOKBOOK(1) (1).pdf
SoniaTolstoy
 
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Krashi Coaching
 
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in DelhiRussian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
kauryashika82
 

Último (20)

Advanced Views - Calendar View in Odoo 17
Advanced Views - Calendar View in Odoo 17Advanced Views - Calendar View in Odoo 17
Advanced Views - Calendar View in Odoo 17
 
Arihant handbook biology for class 11 .pdf
Arihant handbook biology for class 11 .pdfArihant handbook biology for class 11 .pdf
Arihant handbook biology for class 11 .pdf
 
APM Welcome, APM North West Network Conference, Synergies Across Sectors
APM Welcome, APM North West Network Conference, Synergies Across SectorsAPM Welcome, APM North West Network Conference, Synergies Across Sectors
APM Welcome, APM North West Network Conference, Synergies Across Sectors
 
Interactive Powerpoint_How to Master effective communication
Interactive Powerpoint_How to Master effective communicationInteractive Powerpoint_How to Master effective communication
Interactive Powerpoint_How to Master effective communication
 
Software Engineering Methodologies (overview)
Software Engineering Methodologies (overview)Software Engineering Methodologies (overview)
Software Engineering Methodologies (overview)
 
Paris 2024 Olympic Geographies - an activity
Paris 2024 Olympic Geographies - an activityParis 2024 Olympic Geographies - an activity
Paris 2024 Olympic Geographies - an activity
 
Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...
Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...
Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...
 
Mattingly "AI & Prompt Design: Structured Data, Assistants, & RAG"
Mattingly "AI & Prompt Design: Structured Data, Assistants, & RAG"Mattingly "AI & Prompt Design: Structured Data, Assistants, & RAG"
Mattingly "AI & Prompt Design: Structured Data, Assistants, & RAG"
 
BASLIQ CURRENT LOOKBOOK LOOKBOOK(1) (1).pdf
BASLIQ CURRENT LOOKBOOK  LOOKBOOK(1) (1).pdfBASLIQ CURRENT LOOKBOOK  LOOKBOOK(1) (1).pdf
BASLIQ CURRENT LOOKBOOK LOOKBOOK(1) (1).pdf
 
Nutritional Needs Presentation - HLTH 104
Nutritional Needs Presentation - HLTH 104Nutritional Needs Presentation - HLTH 104
Nutritional Needs Presentation - HLTH 104
 
fourth grading exam for kindergarten in writing
fourth grading exam for kindergarten in writingfourth grading exam for kindergarten in writing
fourth grading exam for kindergarten in writing
 
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
 
Unit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptxUnit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptx
 
Introduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The BasicsIntroduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The Basics
 
Key note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdfKey note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdf
 
social pharmacy d-pharm 1st year by Pragati K. Mahajan
social pharmacy d-pharm 1st year by Pragati K. Mahajansocial pharmacy d-pharm 1st year by Pragati K. Mahajan
social pharmacy d-pharm 1st year by Pragati K. Mahajan
 
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in DelhiRussian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
 
Measures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SDMeasures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SD
 
A Critique of the Proposed National Education Policy Reform
A Critique of the Proposed National Education Policy ReformA Critique of the Proposed National Education Policy Reform
A Critique of the Proposed National Education Policy Reform
 
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptxINDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
 

SIM MATH.ppt

  • 2. Title card 1 p. 5 Guide Card 1-4 pp. 2-4, 6 ? Activity Card 1-2 pp. 7-8 Activity Card 3 p. 9 Activity Card 4 p. 10 Activity Card 5 p. 11 Activity Card 6 p. 12 Assessment Card 1-2 pp. 13-14 Answer Card 1-2 pp. 15-16 Enrichment Card 1-2 pp. 17-18 Reference Card 1-2 pp. 19
  • 3. CONTENT STANDARDS PERFORMANCE STANDARDS LEARNING COMPETENCY Demonstrates understanding of the four fundamental operations involving ratio and proportion Is able to apply the four fundamental operations involving ratio and proportion in mathematical problems and real-life situations Finds the missing term in a pair of equivalent ratios. (M5NS-IIi-126) MAIN TASK Find the missing term in a pair of equivalent ratios (M5NS-IIi-126) SUB-TASKS Identify the pattern for a set of numbers Use butterfly method in multiplying numerators and denominators of fraction Use skip counting to find equivalent fractions Reduce fractions to lowest term G U I D E C A R D 1
  • 4. GUIDE CARD 2 Forms equivalent fractions Defines ratio and proportion Uses the concept of ratio and proportion in decision-making Determines equality of two ratios Assesses own skills in forming equivalent ratios Makes equation involving equal ratios BLOOM’S TAXONOMY
  • 5. GUIDE CARD 3 Kaluha Madayaw! Hi kids! I’m Kimi. And I’m Dora. Hi kids! I’m Kim. We are twins.
  • 6. TITLE CARD 1 My Twinnie’s Missing! It was just Two hours back when Kimi and I played hide and seek here. But when I came back, I couldn’t find her anymore and all that’s left is a piece of her slippers and a note. Can you help me find her? I’m glad to help, Dora. Then, let’s Form Task Force Twinnie!
  • 7. GUIDE CARD 4 Text Just follow the trail of fallen leaves and you’ll find Kimi. Friends along your way may either offer or ask for help. You’ll go through mathematical tests to get going. Every wrong answer will block the next path. The Abductor The note says:
  • 8. ACTIVITY CARD 1 Off to Sitio Andapon Jungle Hello, fellas! I’m your friend Momoy. My master asks you to help me solve my problem before you can enter Sitio Andapon jungle. If my brother gives me 3 bananas for every 9 bananas that he has, how many bananas will I have if he has 18?
  • 9. ACTIVITY CARD 2 Momoy, you need to assign the number of bananas you and your brother are supposed to receive in a fraction form You Your brother 3 ___ 9 = 18 ___ To find the missing term, you can skip count the number of times you do from 9 to 18. How many step is it from 9 to 18? Yes, you took 1 step. Now skip count 1 time from 3. There you get 6! 6 Six bananas await you! We’re glad we’re able to help you. #Jungle Intruders
  • 10. ACTIVITY CARD 3 I heard from my friends that there are 20 grasshoppers as there are 5 of us. How many grasshoppers are there if we are 25 in count now? Kaba-kaba, you can draw yourself to answer your own question. Here, we’ll show you. 5 ____ 20 = n ___ 25 x Step 1 Step 2 Step 1 = Step 2 5xn 500 Step 3 (transpose 5 to the other side to leave n alone.) I knew it! If 5 travels across = sign which serves as the bridge, it gets lost that it needs to reverse its cloth (operation) just like humans when lost in the woods. n = 500÷5 n = 100 Very good! Yes, there are 100 grasshoppers now that there are 25 butterflies. A Step in Dasubo Butterfly Sanctuary
  • 11. ACTIVITY CARD 4 Piko time in Magobahong Plateau! Hey, buddies! I wonder how many eggs will I hatch? Can you tell? Last time I laid 8 eggs, I hatched 2. Now I have 24. How do I calculate? LAID EGGS HATCHED EGGS 8 2 16 4 24 6 Kulasisi, we do that in a piko grid. Just like hopscotching (piko), we skip and count all the way down to the goal.
  • 12. ACTIVITY CARD 5 Fishes in Pair Tatay told me to catch biya (bunog) and banak in the ratio of 5:8. Now that I already have 15 biya, how many heads of banak do I need to have so that I can go home? You need to form your data in an equation of ratios such that biya:banak = banak:biya (or extreme:mean = mean:extreme). Now, substitute. 5:8 = 15: ____ Which has now the complete set, biya or banak? Biya at 5 and 15. Right! Now, what is the pattern? Is 5 multiplied or divided by what number to get 15? Multiplied by 3. Do the same to 8 now. Multiply 8 by 3. I see. That means, I need to catch 24 banak to get done with my fishing. Thanks, pals! You’re welcome, buddy! Great job!
  • 13. ACTIVITY CARD 6 All the same Equivalent ratios are just like two identical balloons, one is either inflated or deflated though started out at same size. Just like Activity #5, we just look for the pattern. Yahoo! It’s fiesta time! 7 ___ 9 = 49 ___ smaller to bigger Multiply left to right __ 120 = 8 ___ 10 X 7 63 bigger to smaller multiply right to left x 12 96
  • 14. ASSESSMENT CARD 1 Twin to the rescue! Solve for the missing term using appropriate strategy. 1. 3 = 12 4. 8 = ___ 7 10 100 2. 6 = __ 5. 3 = 15 8 72 55 3. 3 = 24 64
  • 15. ASSESSMENT CARD 2 Twin to the rescue! Supply the blanks with the correct number to form equivalent ratios. 1. 6:7 = 12:_____ 2. 9:2 = ___: 6 3. 15:25 = 5 :_____ 4. 18:____ = 6 : 4 5.____: 20 = 10 : 2
  • 16. ANSWER CARD 1 Twin to the rescue! Solve for the missing term using appropriate strategy. 1. 3 = 12 4. 8 = ___ 7 10 100 2. 6 = __ 5. 3 = 15 8 72 55 3. 3 = 24 64 28 54 8 80 11
  • 17. ANSWER CARD 2 Twin to the rescue! Supply the blanks with the correct number to form equivalent ratios. 1. 6:7 = 12:_____ 2. 9:2 = ___: 6 3. 15:25 = 3 :_____ 4. 18:____ = 6 : 4 5.____ : 20 = 10 : 2 14 18 5 12 100 Congratulations! Continue with your journey. God bless you!
  • 18. ENRICHMENT CARD 1 SKIP COUNT AND WRITE
  • 19. ENRICHMENT CARD 2 The Goal! I’m here with Ninong! I wasn’t able to find you that I went along with him. Come, let’s enjoy! I know you’ve come a long way.This is your reward! Ninong and I had been counting water splashes. He counted 4 for every 2 that I counted. I had already counted 24 splashes. How many of it did Ninong count, you think?
  • 20. REFERENCE CARD 1 • K to 12 Competency Code M5NS-IIi-126 • Mathematics is Fun! textbook, pp.32-34 • Teacher’s Guides pp. 126-127 • LRMDS MATH 5 (Lesson 53) • Mathematics for a Better Life pp. 202-20 • DepEd Self-Instructional Materials # 22 (Math 5)

Notas do Editor

  1. Guide Card 1
  2. horizontal
  3. More independent/no more visual illustration of solution/mental computation/children can write anyway