Thinking about resources to show students how to graph linear inequalities, I can use Autograph in the classroom as I often do but I am always keen to show them resources they can use at home.
handles inequalities very well, unlike many free graph plotters it is easy to plot lines of the form x=k. Click on this image to see these inequalities on the Desmos calculator. See also Desmos graphing calculator on Mathematics for Students. this post
Experiment with these inequalities on the Desmos graphing calculator.
can deal with inequalities (though it cannot plot line of the form x=k) and gives a very clear display. The Holt Online graphing calculator
To enter an inequality, click on the equals sign, then select the required choice:
Up to four inequalities can be entered.
I am puzzled by WolframAlpha currently as I thought this would be an obvious resource to use. The inequalities examples
are fine, however I don’t think this here for x+y<5 would help my students much! inequality plot
For a site with an extensive collection of Excel files for both GCSE and A level – see
site. Mike Hadden’s MathsFiles
There are other resources also, including some for Autograph.
A useful feature to help explore the
is the option to see a screenshot. Excel files
These spreadsheets could be usefully used for demonstrations in the classroom and students could then study the examples further themselves.
WolframAlpha now has a
(and sub-pages) on this blog to make resources easy to find. dedicated page
Hover over a page tab to see any associated pages.
Check Fred Feldon’s presentation on Slideshare which discusses the implications of WolframAlpha for Mathematics education and also includes many examples.
See updated page.
– my post on resources which give questions requiring higher order thinking skills. Rich Questions
has extensive resources. Jennifer Piggot has written an article on Nrich , this includes a complete series of professional development resources designed to support teachers to integrate rich tasks into classroom practice. Their Integrating Rich Tasks provide a helpful way for teachers to find resources. Also note the curriculum mapping documents , these include a set of tasks on Nrich Packages and the working systematically (scroll down to the bottom of the poster collection page to download the collection as a PowerPoint presentation). Nrich poster collection
are designed to teach and assess key mathematical processes. Each task has detailed teacher notes. The Nuffield AMP Investigations
New Bowland shorter
include worksheets, notes and an optional presentation in three different formats, Word, pdf or PowerPoint. assessment tasks
comes an outstanding resource, ‘Problem Solving Questions’. The teachers guide includes indices by topic and also by process. AQA
(Direct links to the and guide .) solutions
see OCR their Investigations for GCSE Mathematics, and an excellent A03 Guide with tasks designed to encourage students to explore different mathematical approaches to a new problem. problem solving pack
has extensive resources, note the Jon Stratford’s Rich Maths Tasks site under Pedagogy includes cards to download in pupil speak. Key Processes
The National Strategies archive includes
to develop mathematical processes and applications. Teachers’ notes and all resources are provided. several problems
For older students (16+) try
(Rich Starting Points). Note he also has a companion Jonny Griffiths’ RISPS and Statistics site -activities to bridge the gap between A Level and University Carom-Maths