# PROBLEM SOLVING DOUBLING KS1

Students are also introduced to the concept of proof. AO elaboration and other teaching resources Achievement Objective: Which of these pocket money systems would you rather have? In how many ways can you halve a piece of A4 paper? Adding and Taking Away Age 5 to 7 In these activities, you can practise your skills with adding and taking away. Will you be the first to reach the target? Fractions Age 5 to 7 The activities in this feature give you chance to explore fractions.

Cut and Paste Doubling and halving bingo 23KB. What do you notice about the sum of identical triangle numbers? The number of plants in Mr McGregor’s magic potting shed increases overnight. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. A simple visual exploration into halving and doubling. Students are also introduced to the concept of proof.

Geoboards Age 5 to 7 This lower primary feature brings together activities which make use of geoboards.

## 66 Matches for doubling halving

Visualising at KS1 Age 5 to 7 These lower primary tasks all specifically draw on the use of zolving. Measurement Age 5 to 7 These lower primary activities are all about measuring.

He’d like to put the same number of plants in each of his gardens, planting one garden each day. AO elaboration and other teaching resources Achievement Objective: Early Fraction Development Age 5 to 11 An article describing activities which will help develop young children’s concept of fractions.

DYSON HOOVER AND THE BAGLESS VACUUM CLEANER CASE STUDY ANSWERS

Try adding fractions using A4 paper. Pythagorean Triples I Age 11 to 16 The first of two articles on Pythagorean Triples which asks how many right angled triangles can you find with the lengths of each side exactly a whole number measurement.

These are all straightforward and can use the doubling and halving strategy. Difficulties with Division Age 5 to 11 This article for teachers looks at how teachers can doublingg problems from the NRICH site to help them teach division. Start with 1 x n, and double and halve from there.

Here are some challenges that you can work on and then see if you can convince someone that your solutions are right! Follow Up Age 14 to 16 Challenge Level: Asks students to solve word problems.

## Word problems with doubling and halving

How can he do it? Good discussion is warranted as a follow-up.

The number solvibg plants in Mr McGregor’s magic potting shed increases overnight. These pictures were made by starting with a square, finding the half-way point on each side and joining those points up. Bits of Things Age 5 to 7 What happens when you split an object or a few objects into different piles?

# Doubling word problems

Developing Able Young Mathematicians Age 5 to 11 Probelm activities are particularly good for challenging high-attaining primary children. A simple visual exploration into halving and doubling.

SFC JHS HOLIDAY HOMEWORK

Problems 4 — 6 have the box on the left hand side of the equation, and involve students working in reverse. If you already have an Education Sector user ID and so,ving, you are ready to log in. Doubling and halving, and trebling and thirding can be used to make multiplication problems easier to solve.