# Forming & Solving Equations

## 3 files22/07/2018

(Used for Tiffin Year 7 scheme of work)

(a) Solve equations, including with unknowns on both sides and with brackets.

(b) Form equations from context (with emphasis on quality of written communication, e.g. "Let x be..."), linked in with previous 'forming expressions' topic. Contexts may include:

* Algebraic angles (e.g. sum of angles in a triangle)

* Simple problems involving consecutive numbers (n, n+1, n+2, ...)

* Problems involving mean with an unknown number of items.# Charts & Averages

## 2 files22/07/2018

(From Tiffin Year 7 scheme of work)

(a) Recognise a variety of ways to display data:

* Construct pie charts, and finding frequencies from angles (and vice versa).

* Be able to construct and interpret bar charts.

* Construct stem and leaf diagrams.

* Understand frequency diagrams and how grouped data can be put in tabular form. Be able to construct frequency polygons.

(b) Be able to analyse data and calculate statistics:

* Calculate the mean, mode, median and range (not quartiles) from listed data.

* Find the mean, mode, median, range from a stem and leaf diagram.

* Calculate the mean from a frequency table and estimate a mean from a grouped frequency table.

* Solve (non-algebraic) problems involving mean, including combined means.

* Appreciate the difference between continuous and discrete data.