# Straight Line Equations (pre-GCSE)

## 10 files11/05/2016

(a) Recap: Know equations of vertical and horizontal lines (e.g. x = 3) and also y = x and y = -x.

(b) Appreciate the conceptual line between lines and their equation (i.e. a line is a set of points that satisfies the equation).

(c) Plot graphs usng a table of values (both linear and quadratic equations).

(d) Find gradient given (i) the equation of the line or (ii) two points on the line. Appreciate gradient gradient is the y-change per unit x change. Includes negative and fractional gradients.

(e) Recognise and use y = mx + c. Find equation of a line given a drawing, and vice versa.

(f) Appreciate that parallel lines have the same gradient.

(g) Determine the x and y intercept of a line.# GCSE Counting Strategies

## 3 files20/03/2017

Counting by (a) systematic listing and (b) by multiplying. Part of the new GCSE specification.

# Probability (pre-GCSE)

## 8 files11/05/2016

(Used for the Tiffin Year 8 scheme of work)

(a) Determine probabilities using matching outcomes/total outcomes.

(b) Understand the concept of a 'sample space'. Identify the sample space for both a single event and two combined events (e.g. adding two dice) and use to calculate probabilities.

(c) Understand the difference between experimental and theoretical probabilities. Calculate experimental probabilities/relative frequencies and estimate the most likely count given the number of trials and a probability.# Robot Path Activity

## 2 files11/05/2016

Activity in which students have to count the total number of possible paths for a robot given certain restrictions on its movements, in order to work out probabilities.