# Cuisenaire Rods

This document from the NCETM gives a good introduction to Cuisenaire rods with lots of examples. https://www.ncetm.org.uk/files/110720776/ncetm_ks3_cuisenaire_rods.pdf

Below are a few more ideas you can try. I recommend that you try these for yourself with a set of rods or using interactive rods online.https://mathsbot.com/manipulatives/rods

## Fractions

This is a nice task to try with years 7 to draw out prior knowledge and misconceptions. You can link this to equivalent fractions, improper fractions, decimals and percentages.

If light green represents 1 what do the other rods represent?

If yellow represents 1 what do the other rods represent?

If green represents 1 what do the other rods represent?

If orange represents 1 what do the other rods represent?

If red represents 1/5 what do the other rods represent?

If red represents 1, show me 2 of ½ and ½ of 2.

If light green represents 1, show me 2 of 1/3 and 1/3 of 2.

### Adding Fractions

Paul Nwaolise - Enigma Secondary Teaching for Mastery Specialist

Create your own fraction walls.

### Dividing Fractions

Using rods allows students to see division of fractions as grouping (lots of).

Have a google search for Cuisenaire rods and you will find lots more on fractions.

## Averages

### Mean with Cuisenaire rods

### Averages from frequency tables

## Sequences with Cuisenaire rods

The rods on the left form the sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ...

The first term is always made from white rods. Each white rod is one in length.

The third term is always made from light green rods.

Light green rods are equivalent to 3 ones.

The tenth rod is equivalent to 10 ones.

How many ones will the 100th rod be equivalent to?

How many ones will the nth rod be equivalent to?

The rod size varies or changes depending on its position in the sequence.

We call this a variable