Transcript Create your own problem! Now solve it!

Implementation
1.
Review the mathematical concept.
2.
Review the problem solving steps.
3.
READ: Children read the part that is asking them to find
something out.
4.
UNDERSTAND: Children explain what they need to find out.
5.
Children identify what information they will need to find it
out.
6.
Remove the coloured rectangle.
7.
Children find the information they need to find it out.
8.
CHOOSE A STRATEGY: Children identify strategies that they
could use to find it out.
9.
USE A STRATEGY: Children use a strategy to find it out.
10. Children record their thinking as they find it out.
11. CHECK: Children reread the part that asked them to find
something out.
12. Children check that they have found it out.
13. Children check they have recorded their solution correctly.
14.
Children follow the problem solving steps to solve the 2nd
level of the problem, with minimal teacher guidance.
15.
Children who solve the 2nd level, follow the problem solving
steps to solve the 3rd level of the problem independently.
16.
Children use the problems as a guide to create their own
problem, either alone or in pairs/small groups.
Children solve their own problem.
Throughout the lesson, children share solution strategies.
At the end of the lesson, children explain how they created their own problems.
17.
Problem Solving
Multiplication and Division by 8
The teacher made 8 teams of 8 children.
How many children altogether?
The teacher made 8 teams of 12 children.
How many children altogether?
The teacher made 8 teams of 22 children.
How many children altogether?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
The school had 8 classes of 28 children.
How many children altogether?
The school had 8 classes of 31 children.
How many children altogether?
The school had 8 classes of 34 children.
How many children altogether?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
48 children are divided into 8 teams.
How many in each team?
96 children are divided into 8 teams.
How many in each team?
224 children are divided into 8 teams.
How many in each team?
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Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
The school divided 152 children into 8 classes.
How many children in each class?
The school divided 208 children into 8 classes.
How many children in each class?
The school divided 256 children into 8 classes.
How many children in each class?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
A group of children paid $8 each to see a show.
Altogether the group paid $48.
How many children were in the group?
A group of children paid $8 each to see a show.
Altogether the group paid $72.
How many children were in the group?
A group of children paid $8 each to see a show.
Altogether the group paid $104.
How many children were in the group?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
Cupcakes are sold in boxes of 8. Jemima wants to give one
cupcake to each of her 32 classmates.
What is the least number of boxes that Jemima needs?
Cupcakes are sold in boxes of 8. Jemima wants to give
one cupcake to each of her 40 classmates.
What is the least number of boxes that Jemima needs?
Cupcakes are sold in boxes of 8. Jemima wants to give one
cupcake to each of her 192 grade mates.
What is the least number of boxes that Jemima needs?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
In a garden, there are 8 tomato plants for every 1 lettuce plant.
There are 4 lettuce plants.
How many tomato plants are in the garden?
In a garden, there are 8 tomato plants for every 1 lettuce plant.
There are 14 lettuce plants.
How many tomato plants are in the garden?
In a garden, there are 8 tomato plants for every 1 lettuce plant.
There are 49 lettuce plants.
How many tomato plants are in the garden?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
Roland is paid the same amount for each lawn he mows.
He gets paid $32 for mowing 8 lawns.
How many lawns does he need to mow to get paid $48?
Roland is paid the same amount for each lawn he mows.
He gets paid $56 for mowing 8 lawns.
How many lawns does he need to mow to get paid $84?
Roland is paid the same amount for each lawn he mows.
He gets paid $80 for mowing 8 lawns.
How many lawns does he need to mow to get paid $300?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
Jenna makes 32 pizzas. She puts them on 8 trays.
What number sentence shows how Jenna could work out
the number of pizzas on each tray?
Jenna makes 96 pizzas. She puts them on 8 trays.
What number sentence shows how Jenna could work out
the number of pizzas on each tray?
Jenna makes 128 pizzas. She puts them on 8 trays.
What number sentence shows how Jenna could work out
the number of pizzas on each tray?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
Toni bought 8 apples.
The apples cost 30 cents each.
How much did Toni have to pay?
Toni bought 8 apples.
The apples cost 60 cents each.
How much did Toni have to pay?
Toni bought 8 apples.
The apples cost 75 cents each.
How much did Toni have to pay?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
8 classes each have 24 children and 1 class has 25 children.
How many children altogether?
8 classes each have 29 children and 1 class has 30 children.
How many children altogether?
8 classes each have 32 children and 1 class has 30 children.
How many children altogether?
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Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
There are 2 number cards. 3 1
Use the number cards to make this
number sentence true:
x 8 = 248
There are 2 number cards. 3 6
Use the number cards to make
this number sentence true:
x 8 = 288
There are 2 number cards. 4 5
Use the number cards to make
this number sentence true:
x 8 = 432
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Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
3
Jenna has 2 cards. 2
She makes a two-digit number and multiplies it by 8.
What products could Jenna make?
Jenna has 2 cards. 3
1
She makes a two-digit number and multiplies it by 8.
What products could Jenna make?
Jenna has 2 cards. 4
7
She makes a two-digit number and multiplies it by 8.
What products could Jenna make?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
A mouse is about 12 cm long.
A cat is about 8 times as long as a mouse.
About how long is a cat?
A budgie is about 13 cm long.
An eagle is about 8 times as long as a budgie.
About how long is an eagle?
A parrot is about 27 cm long.
A vulture is about 8 times as long as a parrot.
About how long is a vulture?
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Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
A child has 10 packets of pencils.
There are 8 pencils in each small packet.
There are 10 pencils in each large packet.
The child has 2 small packets.
How many pencils does he have altogether?
A child has 6 packets of pencils.
There are 8 pencils in each small packet.
There are 10 pencils in each large packet.
The child has 4 small packets.
How many pencils does he have altogether?
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Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
Sophie recorded this true number sentence.
6 x 8 = 48
What other number sentence is also true?
8 x 6 = 48 48 x 6 = 8 8 x 48 = 6
Sophie recorded this true number sentence.
6 x 12 = 72
What other number sentence is also true?
72 x 8 = 12
8 x 12 = 72
6 x 72 = 12
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Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
Mary had 48 beads.
Tom had an eighth as many.
How many beads did Tom have?
Mary had 64 beads.
Tom had an eighth as many.
How many beads did Tom have?
Mary had 640 beads.
Tom had an eighth as many.
How many beads did Tom have?
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Multiplication and Division 16
Patterns and Algebra 18
Problem Solving
Multiplication and Division by 8
A fork is 8 centimetres long.
4 forks are the same length as 2 chop sticks.
How many centimetres long is 1 chop stick?
A fork is 16 centimetres long.
4 forks are the same length as 2 chop sticks.
How many centimetres long is 1 chop stick?
Create your own problem! Now solve it!
Multiplication and Division 16
Patterns and Algebra 18