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Sort the Street

Stage: 1 Challenge Level: Challenge Level:1

Sort the Street


Here are nine of the houses in my street:

nine houses

Find as many different ways to sort them into groups as you can.

You may like to use this interactivity to drag the houses into groups.

This text is usually replaced by the Flash movie.

 


Why do this problem?

This problem is ideal for children to work on in pairs or small groups as this will encourage them to talk about what they are doing, which is a great assessment opportunity for you. Its open-ended nature is a reason in itself to try it in the classroom. Some pupils may surprise you with their inventiveness!

Possible approach

To introduce the problem, invite the children to chat in pairs about what they notice about the houses. Then, sort the houses according to a particular criterion using the interactivity and invite the class to work out how they have been sorted. This will help them to grasp the focus.

Give each pair cards of the nine houses, (you can print off copies of either this pdf or this Word document, laminated and cut out for long-term use) so learners can physically sort the houses into groups. Children could record their different groupings in some way, perhaps by making a collective record on the board or on a large sheet of display paper. You could also use the interactivity to share ideas.

It is important to recognise children's reasons for groupings. Any way of sorting the houses is valid, as long as a good explanation of the categories is given. You could round off the lesson by playing "odd one out". Drag four of the houses into a space and ask pupils to say which is the odd one out. Can they give reasons for any of the other houses to be an odd one out too?

Key questions

What is the same about these houses? Are there any others like that?
Why have you grouped the houses in this way?

Possible extension

Some children will enjoy the challenge of finding two or more criteria which fit some houses, perhaps also extending to more than two groups. For example, rather than just "these houses have five windows" and "these houses don't have five windows", some might say "these houses have five windows and are tall"; "these houses have five wondows but aren't tall/are short" and "these houses don't have five windows".

Possible support

You could model one way to approach this activity by taking two houses and asking what the same is about them, as suggested in the key questions. Children can then add more houses to the pair by looking for those that fit this criterion.