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## Resources - Secondary Mathematics

Over the years we have recommended many mathematics resources which are available on the STEM Website. This post is a list of the resources with links to the appropriate post

1001 Math problems

 Area puzzles A development of the ‘area maze puzzles’ first introduced by one of the world’s most prolific inventors of logic puzzles, Noaki Inaba LINK Primes around six This resource has some interesting ideas on how to bring the distribution of primes into the secondary classroom. LINK Cryptarithm puzzles A series of problems that test for understanding of place value and number properties. LINK Geometric progressions Geometric progressions are often presented purely as a sequence of numbers but this resource uses graphical representations to bring the topic to life. LINK

Something in common

 Cross-bear Simple algebraic fractions and problem solving LINK Four crescents Draws together work on area of a circle, composite shapes, Pythagoras’ theorem and algebra. LINK Two crescents and a triangle Draws together work on area of a circle, composite shapes, Pythagoras’ theorem and algebra LINK Train length Brings together work on forming and solving equations, working with rates such as speed and manipulating fractions. LINK

Dy/dan

 Marine ramp A resource to develop understanding of simple trigonometry LINK Nanas Chocolate mix A resource exploring ratios LINK Pixel Pattern This resource contains some interesting ideas on this topic and draws together work on sequences, rates, dimensions, ratio, coordinates and equations LINK Bet your coffee This activity gives a chance to explore expected value in a context other than the usual ones involving games of chance. LINK Domino sky scraper The dominos form a geometric sequence, with the dimensions of each subsequent domino increasing by a factor of 1.5. Which domino in the sequence would be sufficient to topple a skyscraper sized domino? LINK

MARS

 Describing and defining triangles Recall and apply triangle properties. Sketch and construct triangles with given conditions. Determine whether a set of given conditions for the measures of angle and/or sides of a triangle describe a unique triangle, more than one possible triangle or do not describe a possible triangle. LINK Describing and defining quadrilaterals The task explores how well students understand the definitions of various quadrilaterals. As an example, one question asks students if ‘all’, ‘some’ or ‘no’ rectangles are squares, and to give a reason for their choice of words. LINK Building and solving linear equations in one variable To solve linear equations in one variable, collect like terms, expand expressions, and to categorize linear equations according to the number of solutions. LINK Interpreting equations The resource is intended to help students connect algebraic equations to real-life situations. LINK Interpreting and using data: setting taxi fares The resource is intended to assess how well students are able to select and use mathematical ideas to solve a problem and then compare and critique alternative approaches. LINK Comparing data using statistical measures The resource is designed to help students make meaningful comparisons between sets of data. LINK Angle theorems The resource develops conceptual understanding relating to the interior and exterior angles of polygons. LINK Analysing games of chance The resource is designed to confront and overcome common probability misconceptions. LINK Generalising patterns: the difference of two squares The resource is intended to assess how well students are able to work systematically, describe and explain findings, generalise, and explain why certain results are possible/impossible. LINK

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