**Starter:**Angle Estimates - Estimate the sizes of each of the angles then add your estimates together.

- Angle Theorems Revise (or learn for the first time) the basic angle theorems using this visual aid. Click on the diagrams to access the interactive versions.
- Angle Points This is an exercise to practice using the theorems. There is a Help tab that pupils can click on to get a reminder of the theorems. Pupils speeding through this exercise can then start on the Angles with Parallel Lines exercise and if that is not challenging enough there is also an exercise on Circle Theorems.
- Angle Properties Song As a bit of light relief you could play this video of a silly song written to remind pupils of some of the theorems. Or you could decide to skip this video altogether!
- Angle Chase This can be done as a whole class activity with the design being projected onto the whiteboard but it is much better if pupils have access to computers to complete the Chase. This activity can be done in pairs with pupils taking it in turns to fill in the value of an angle.

**Finisher:**Smallest Number - Everyone chooses a number. The winner is the person who has chosen the lowest number that no one else has chosen

Smallest Number Table

It doesn’t happen very often but sometimes you find yourself in the position of having to deliver a lesson at a moment’s notice. In the worst case scenario you do not know what the class have previously been learning and you have been given no information about the nature of the pupils from their normal teacher.

These lesson plans have a *low threshold, high ceiling* so can be great learning opportunities for a wide range of pupils and class dynamics. No preparation is required as all of the activity details can be found by clicking on the links in the plans.

If pupils complete the activities online and earn trophies as a record of their progress teachers (who are Transum subscribers) can see from their class list which pupils have earned which trophies.

Furthermore if pupils do have access to internet connected computers see Laptops In Lessons for more lesson plans. If they have iPads there are some ideas on the iPad Maths page.

Show all Emergency Lesson Plans.

There is a printable page called Lectio Tumultuarios (Latin for Emergency Lesson) designed for Maths tutors (who are Transum subscribers) to have printed and stored in their folder ready to use on the odd occasion when a quick five minute time filler is required.

Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.

Transum,

Friday, March 23, 2018

"My extreme emergency lesson (back in the day) was the Four Fours challenge. It was sort of an HCF of all the classes I was likely to have to cover and required no equipment or preparation.

The objective of this challenge is to find the simplest mathematical expression for every integer from one to some maximum (depending on the class), using only common mathematical symbols and four copies of the digit four.

Nowerdays if you want to issue this challenge to a class you could do it using a different digit by using the 4th July Starter page as a projectable visual aid."