Exploring **Algebra Review Questions** from Underground Mathematics I came across some Coordinate Geometry questions I really like and yesterday spending a day with the very talented writing team and my fellow Underground Mathematics Champions we explored **Straight Line Pairs**, a question with much scope for exploration and possible methods of solution.

The image above has been created from the Printable/supporting materials.

My Year 11s will be looking at Coordinate Geometry this week and I have some other questions I would like them to try. It is possible to create pdf files for a collection of questions, see **Saving Favourite Resources**, one of Underground Mathematics’ How To Videos. (See the tutorials page I have in the **Underground Maths series of pages** – a work in progress).

You will find a whole collection of such questions if you look at **Geometry of Equations**. This includes many resources including Review questions. Note the Building Blocks resources. I think I’ll be using Underground Mathematics resources with ever younger students – Year 9 can try **Lots of Lines**! You will see from the the supporting materials that this has come from the brilliant **Standards Unit** (A10) collection. Students must sort the lines into six pairs, each pair matching one of the given descriptions.

Staying with the Building Blocks I do like **Straight Lines **where students must decide which of 17 equations are equations of a straight line.

**Look at the list** – a wonderful lesson in not jumping to conclusions here! Both my Year 9 and my Year 11 are going to be trying these this week!

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Straight Lines reminded me of Line Pairs, I feel an extension for Year 11 coming on!