Decimal Addition and Subtraction | mhorley

Where do I need to add decimal points to make the calculations correct?

The questions can be amended in this spreadsheet, by changing the numbers in the Answers column.

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A decimal investigation | mhorley

Inspired by playing the excellent Sumaze! 2 game from MEI, here is an investigation that aims to provide some purposeful practice on decimals. The aim is to provide an accessible entry point for all learners with opportunities for depth through generalisation. This slide presentation steps through it although exactly how you move from one part to the next will, of course, depend on the class.

I have included solutions in this spreadsheet although I would be hesitant to display them in this form, as I would prefer that the results are found and discussed as we go along rather than just…

Continue reading at:

http://ift.tt/2D5QyE8

A decimal investigation | mhorley

Inspired by playing the excellent Sumaze! 2 game from MEI, here is an investigation that aims to provide some purposeful practice on decimals. The aim is to provide an accessible entry point for all learners with opportunities for depth through generalisation. This slide presentation steps through it although exactly how you move from one part to the next will, of course, depend on the class.

I have included solutions in this spreadsheet although I would be hesitant to display them in this form, as I would prefer that the results are found and discussed as we go along rather than just…

Continue reading at:

http://ift.tt/2D5QyE8

Area of a triangle | mhorley

I made these questions to hopefully reinforce the idea of area as the space inside a shape, rather than just the answer you get when you multiply numbers together.  Also I want them to see why the area of the triangle is half the area of the rectangle which it is enclosed within.  I made them using this Geogebra file but then pasted a few to make this worksheet, some with grids then some with just lengths.

A colleague of mine @DrPMaths made this impressive collection of triangles with 3 integer side lengths and an integer height.  Again, they are a great way to check that students are…

Continue reading at:

http://ift.tt/2ALktk7

Area of a triangle | mhorley

I made these questions to hopefully reinforce the idea of area as the space inside a shape, rather than just the answer you get when you multiply numbers together.  Also I want them to see why the area of the triangle is half the area of the rectangle which it is enclosed within.  I made them using this Geogebra file but then pasted a few to make this worksheet, some with grids then some with just lengths.

A colleague of mine @DrPMaths made this impressive collection of triangles with 3 integer side lengths and an integer height.  Again, they are a great way to check that students are…

Continue reading at:

http://ift.tt/2ALktk7

Some vector questions | mhorley

My Year 11 class are currently learning about vectors, a GCSE topic that can be tricky for some.  I’m mostly using the excellent Powerpoint from Dan Walker but also wrote the following questions which I was quite happy with.

They start off quite easy but have a nice extension into generalisation (Q4) and then geometric reasoning in Q5.  It was good to see my students being able to tackle 1-4 without resorting to drawing anything.  However, I think a drawing is definitely warranted in Q5 as it highlights how to find the area.

Continue reading at:

http://ift.tt/2zOBX1K