Year 4 Exploring and Noticing

How will you complete these interactive Venn diagrams?

This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.

Where can you put the mirror across the square so that you can still "see" the whole square? How many different positions are possible?

Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.

Use the two sets of data to find out how many children there are in Classes 5, 6 and 7.

Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?

Use two dice to generate two numbers with one decimal place. What happens when you round these numbers to the nearest whole number?

How do you know whether you will reach these numbers when you count in steps of six from zero?

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

The discs for this game are kept in a flat square box with a square hole for each. Use the information to find out how many discs of each colour there are in the box.

Use the interactivity to move Pat. Can you reproduce the graphs and tell their story?

What do the numbers shaded in blue on this hundred square have in common? What do you notice about the pink numbers? How about the shaded numbers in the other squares?

Can you dissect an equilateral triangle into 6 smaller ones? What number of smaller equilateral triangles is it NOT possible to dissect a larger equilateral triangle into?

Can you place the blocks so that you see the reflection in the picture?