It's quite hard to pin down what 'reasoning' looks like. At KS1 we're looking for good 'because' statements. And if there are two or more which make a chain, that's progress.
This collection is one of our Primary Curriculum collections - tasks that are grouped by topic.
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Poly plug rectangles
The computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?
If the world were a village
This activity is based on data in the book 'If the World Were a Village'. How will you represent your chosen data for maximum effect?
Two numbers under the microscope
Wallpaper
These pieces of wallpaper need to be ordered from smallest to largest. Can you find a way to do it?
A bag of marbles
How odd
In the playground
Lots of lollies
Frances and Rishi were given a bag of lollies. They shared them out evenly and had one left over. How many lollies could there have been in the bag?
Less is more