My take on Daniel Burke's excellent idea of odd-one-out set to a song featuring Cookie Monster. The box at the bottom of the puzzles should show the video but Powerpoint and the TES website don't like this link, so I&'ve given the website address to download the video, which you can then insert into the powerpoint. Menus are clickable (clicking on the top heading will take you back to the previous menu). Correct answer flashes after 50 seconds (this coincides with the video)

Inspired by something similar I saw on Don Steward's Median blog, a set of non-calculator questions that reward pupils for applying the basic index laws before trying to work out the answer.

A complete lesson on subtracting a negative number. Activities included: Starter: Some recap questions on adding a negative number (I always teach this first). Main: A slide showing a number pattern to demonstrate the logic of subtracting a negative. Example question pairs with number lines, for pupils to practice and give a chance to provide instant feedback. A set of differentiated questions. A more challenging task for pupils to discuss in pairs, where they try to find examples or counterexamples for different scenarios. Plenary: A deceptively simple puzzle to consolidate the key point of the lesson. Printable worksheets and answers included. Please review it if you buy as any feedback is appreciated!

A complete lesson on adding a negative number. Activities included: Starter: Some questions on number bonds. Main: A slide showing a number pattern to demonstrate the logic of adding a negative. Example question pairs with number lines, for pupils to practice and give a chance to provide instant feedback. A set of differentiated questions. A more challenging task for pupils to discuss in pairs, where they try to find examples or counterexamples for different scenarios. Plenary: A final question to prompt discussion about misconceptions pupils may already have. Printable worksheets and answers included. Please review it if you buy as any feedback is appreciated!

An excel file that shows pi as the ratio of circumference / diameter for a circle

Classic quiz with questions on linear equations, including unknowns on both sides, brackets and simple algebraic fractions. Answers on each slide by clicking on orange squares. Hope no-one minds my use of an image of Bob Holness - he will always be the face of Blockbusters to me!

Hard to describe! Shows how the functions sin and cos effect the trajectory of a cricket ball. A nice real-life example of SOHCAHTOA and the trigonometric functions. Includes some challenging questions at the end. Could be used to revise/demonstrate the curves of sin and cos at GCSE or introduce component form in A-Level Mechanics.

A very simple but motivating game where pupils race to complete a grid of times tables. Separate instructions attached. Also a spreadsheet which reveals answers and can be used to keep track of pupil progress (I maintain records of pupils' personal bests on there). A good task for settling a class that requires minimal preparation.

Classic quiz with question on angle rules, including simple parallel lines and knowledge of shape properties. Answers on last slide. Hope no-one minds my use of an image of Bob Holness - he will always be the face of Blockbusters to me!

Based on the card game, pupils use their percentage and fibbing skills to win.

A simple but adaptable interactive picture quiz in powerpoint to dress up asking questions - ideal for starters or plenaries. Think Catchphrase but with 2 different images for 2 teams and pictures of anything you fancy. You provide the questions. See separate instructions.

A GSP file (requires Geometer's Sketchpad software to open) which measures, for a right-angled triangle, the sides and ratios sin, cos and tan. The triangle can be changed dynamically. Also shows the graphs of the ratios. Could be used to introduce trigonometric ratios, explain the graphs of sine, cosine and tangent up to 90 degrees or to generate questions on SOHCAHTOA.

A treasure hunt requiring knowledge of interior and exterior angles. Two sets of questions to dissuade pupils from just following each other! Mistakes on first version now fixed.

Worksheet where answers to questions are used to obtain a 3-digit code (which I set as the combination to a lockable money box containing a prize). Questions on all aspects of parametric functions as seen in C4

A treasure hunt/follow me activity on circle theorems.

Starts as a dice substitution game but goes a lot deeper by considering the expressions as functions and the effect this has on potential strategies for playing the game. Only suitable for able GCSE students - requires a good grasp of quadratic functions. Nice way of revising and exploring the connection between expressions and functions.

A complete lesson on increasing or decreasing by a percentage. Activities included: Starter: A template for pupils to work out lots of different percentages of £30 Main: Examples and a set of straight-forward questions making percentage changes. A connect 4 game for pupils to play in pairs, taking it in turns to work out percentage changes and win squares on a grid. A few questions to discuss about the game. A puzzle where pupils arrange numbers and percentage change statements to make a loop. Plenary: Some examples looking at making a percentage decrease a different way - eg decreasing by 25% by directly working out 75% Printable worksheets and answers included. Please review if you buy as any feedback is appreciated!

A complete lesson on expressing a change as a percentage. Activities included: Starter: A puzzle to remind pupils of how to make a percentage change. Main: Examples and quick questions for pupils to try, on working out the percentage change. A worksheet with a progression in difficulty and a mix of question types. An extension task involving a combination of percentage changes. Plenary: A ‘spot the mistake’ question. Printable worksheets and answers included. Please review if you buy as any feedback is appreciated!

A complete lesson on using calculators to directly make percentage changes, e.g. increasing by 5% by multiplying by 1.05 Activities included: Starter: A recap on making a percentage change in stages, e.g. increasing something by 5% by working out 5% and adding it to the original amount. Main: Examples and quick questions for pupils to try, along with some diagnostic questions to hopefully anticipate a few misconceptions. A worksheet of questions with a progression in difficulty. An extension task/investigation designed to challenge the misconception that you can reverse a percentage increase by decreasing by the same percentage. Plenary: A question in context - working out a restaurant bill including a tip. Printable worksheets and answers included. Please review if you buy, as any feedback is appreciated!

A complete lesson for introducing the trapezium area rule. Activities included: Starter: Non-calculator BIDMAS questions relating to the calculations needed to area of a trapezium. A good chance to discuss misconceptions about multiplying by a half. Main: Reminder of shape properties of a trapezium Example-question pairs, giving pupils a quick opportunity to try and receive feedback. A worksheet of straight forward questions with a progression in difficulty, although I have also built in a few things for more able students to think about. (eg what happens if all the measurement double?) A challenging extension task where pupils work in reverse, finding measurements given areas. Plenary: Nice visual proof of rule by relating to the rule for the area of a parallelogram. Printable worksheets and answers included. Please review it if you buy as any feedback is appreciated!