Spreadsheet that calculates chronological ages. It works (I hope!) correctly for months of different lengths etc. (No awkward cludges of dividing days by 30 to get months.) First tab on the sheet is set up so you can enter a whole class. The second tab is just for quickly checking single dates of birth. The main calculations in the first tab are carried out in columns D to J, which are hidden. If you look at the formulae, you will see that the formula is far from elegant - but calculating chronological ages is not an elegant process! I realise that the year calculation could be simpler, but I couldn't be bothered to edit it...

Worksheet to draw and measure interior and exterior angles for a pentagon. 2nd worksheet to divide polygons into triangles for total interior angles.\n\n(I have previously posted a worksheet to complete for int/ext angles of regular polygons)

Promethean flipcharts demonstrating surface area and volume of solids. Versions for ActivInspire (Flipchart) and ActivStudio 3.5 (Flp).

Powerpoint in Millionaire format. All 4 rules for fractions, starting from add/subtract then multiply/divide. Mixed numbers and simplifying involved at different points. [6/5/15 edited to remove duplicate false answer on Q1.]

Quick activity with six pairs to match up.

Partners take turns to coach each other in rounding numbers to required decimal places or significant figures.

10 questions. Quick, multiple choice, summative quiz. Can use coloured flash cards or whiteboards to get responses. Mainly simple linear, but also geometric and squares to finish.

10 questions. Quick, multiple choice, summative quiz. Can use coloured flash cards or whiteboards to get responses.

Fairly basic set of 15 Qs to be used with flashcards, whiteboards etc. Covers integers with indices and algebraic expressions. Add/subtract rules. Useful as revision or building up to add/sub simple powers.

Quiz, loosely based on Deal or No Deal. #1 has brackets but easier numbers; #2 has (simple) algebraic fractions; #3 negative and decimal answers.\n\nThe player has an amount of money. The boxes contain algebraic expressions that say what that box is worth. So, if the player has £100, 2x+50 gives a box value of £250. \n\nIt could equally be played as a quiz between two teams or individual players trying to get the highest value box.\n\nOriginal idea inspired by CrazyTalk clips on YouTube linked by Keith Ennis.

Visual of seesaw showing how to keep simple equations balanced while solving. 2 quick examples, but it should be easy to create more by copying and amending slides.

Brackets are compared to party bags! So expanding is just finding out how many items altogether. Hopefully simple, visual explanation of concept followed by some quick questions. Used alongside mini-whiteboards.

Scaffolded worksheet on fractions of an amount using fairly simple quantities.

This links factorisation of linear expressions (where the term in the bracket is in the form y=m(x + c/m)) to the intercept with the x-axis. It lays the foundation for the same concept when factorising quadratics. It could be developed by examining y = c - mx or y=m(ax + c/m).

Promethean flipchart demonstrating percentage increase and decrease. Authored in ActivStudio 3.5 but should import into ActivInspire.

Simple intro to translations. Describe movement of car around track using translations. Draw own track and do the same. Promethean flipcharts (old and new versions) and worksheet.

Short, scaffolded worksheet for adding and subtracting fractions. For low ability group

6 pairs to match. 3 with full dimensions (one unit conversion needed). 3 with end area and missing length, but should be able to match by eliminating possibilities. Find missing dimension for last three (all integer values).Quick starter/plenary.

Quick set of 8 questions (x3) for multiplying mixed numbers. Answers provided.

Fill-in worksheet introducing correct way to name angles/lines and identifying alternate/corresponding angles. Goes on to get students to identify and then write correct geometric reasons. Answer sheet to match (although student sheet slightly reconfigured since to give correct names for angles). Meant as a reasonably easy introductory resource once key ideas have been explained from the board. Hopefully accessible to my Y7s (Yup!) Second worksheet (with answers) emphasises reasons for each angle