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PPT
Curated OER

Year 5, Term 2, Unit 7

For Teachers 5th - 8th
Here is a challenging presentation which should be tough for even your top math learners. In it, pupils view 86 slides which take them through many mathematical concepts such as doubling, halving, decimals, word problems, and converting...
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PPT
Curated OER

Numeracy Starters

For Teachers 3rd - 5th
If you like to start each day with a new math challenge or warm-up, this resource is a must have. It includes 36 slides, each containing a different math challenge that stimulates algebraic reasoning, problem solving, and basic math...
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PPT
Curated OER

Doubles and Halves 3

For Teachers 3rd - 5th
Build mental math skills by teaching learners to double and half three-digit numbers. They start out by doubling one of seven double-digit numbers. Next, they discuss their strategy, and then practice doubling and halving 3-digit...
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PPT
Curated OER

Doubling and Halving

For Teachers 1st - 3rd
A cute square-headed robot is here to help your class understand doubling and halving. Numbers go in his head and come out his ear doubled. Those same number then go in his ear and come out his head halved. This is a great way to show...
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Activity
Illustrative Mathematics

Comparing Products

For Teachers 5th Standards
How can 5th graders show understanding that 30 x 225 is half of 60 x 225 without completing the computation? They can use an area model and draw it out. An array, orĀ an open array, is an area model that allows for young learners to...
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PPT
Curated OER

Doubling Starter

For Teachers 2nd - 3rd
It is really important to teach kids basic math facts so they can solve more complicated problems later if life. They can practice building number sense and automaticity with this doubling and halving warm up. They are shown a series of...
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PPT
Curated OER

Multiplication: Doubling and Halving

For Teachers 4th - 6th
Intended for summer school, this unit review covers basic multiplication through doubling and halving, division, fraction to decimal conversion, and word problems involving decimal numbers. Use it to warm up the class, review concepts,...
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Worksheet
Curated OER

Revise Doubling and Halving

For Students 3rd - 4th
In this doubling and halving worksheet, learners practice doubling 16 three-digit numbers, half 16 three-digit numbers and solve 8 additional division and multiplication math problems.
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Worksheet
Curated OER

Doubling

For Students 1st - 2nd
In this doubling worksheet, students double 6 given numbers, writing the doubled number beside each. An answer key and reference web site are given.
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Worksheet
Curated OER

Doubling

For Students 1st - 3rd
In this doubling worksheet, students double given numbers, writing answers in boxes beside each. A website reference for additional resources is given.
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Lesson Plan
Curated OER

Pizzas And Things

For Teachers 1st
First graders problem solve using the concepts of doubling and halving numbers as previews for finding multiples and working with fractions. They determine how to find half of a set of objects and work with sums up to 16. They work with...
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Lesson Plan
Curated OER

Smart Doubling

For Teachers 2nd
Second graders use mental math in calculations involving addition and subtraction. They study doubles facts to work out addition problems mentally using part and or whole reasoning.
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Lesson Plan
Curated OER

Rabbits

For Teachers 3rd - 5th
Students review what they think doubling means and double numbers mentally, for example, 5, 12, 16. They share their solutions and discuss how they doubled. They work together on a problem that is beyond mental working and solve...
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Lesson Plan
Curated OER

Pocket Money

For Teachers 3rd - 5th
Students discover that the mathematics behind this question is a comparison of the rate at which adding a fixed number increases the total compared to continual doubling of a number. In fact no matter what whole numbers you start with,...
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Lesson Plan
Curated OER

Math 6 - Act. 04: Dishes for a Penny

For Teachers 6th
Sixth graders complete activities to determine if they would like to do the dishes on this pay schedule: first night 1 penny, and each night after the amount double.