Mathematics 4

# Lesson 5 - Creating Spinners

To encourage your child to have fun on the Web while learning about Creating Spinners, and 1000, here are some games and interactive activities they can do on their own or in pairs.

### Goal

Design spinners to meet given conditions and then test the spinners.

### Builds Upon

Student Book pages 368-369

### Instructions for Use

Adjustable Spinners lets your child design and experiment with probability by increasing or decreasing the coloured sections of a spinner.

To increase or decrease the colour sections, click the '+' or '-' buttons, or drag the black dots on the spinner. To change the size of the colour sections, adjust the slider bars, or input percentages into the text fields. When the number and size of the sections is established, input the number of spins in the text field and click the "spin' button. The results are tallied in the chart. Click the 'Show Results Frame' to view a pop-up window that displays the results in the form of a pie chart.

To clear all the experimental data, click the 'New Experiment' button and start again.

Probability lets your child experiment with probability by spinning a spinner.

To use Probability, start by selecting 'Preset Spinner'. Choose the number of spins - 1, 5, or 10. Click the 'Spin' button. A tally chart records the results of each spin. Press the 'Clear Tally' button to clear the results and start again.

To use 'Make Your own Spinner', select the 'New Spinner' button. To increase or decrease the colour sections, click the '+' or '-' buttons, or drag the black dots on the spinner. Choose the number of spins - 1, 5, or 10. Click the 'Spin' button. A tally chart records the results of each spin. Press the 'Clear Tally' button to clear the results and start again.