A free service for South African school students struggling with mathematics.
Give more than you can afford. Take less than you need. Leave every situation better than you found it.
Please leave a comment if any of the material has been useful to you.
admin
-
Resistors in series and in parallel
Read more: Resistors in series and in parallelAn explanation of the basic concepts in electricity. This leads into an explanation of how…
·
-
Investments over multiple time intervals
Read more: Investments over multiple time intervalsHow to work with investments that are split over several time intervals.
·
-
Perpendicular lines (easier)
Read more: Perpendicular lines (easier)The relationship between the slopes of lines that are perpendicular to each other.
·
-
How to solve equations – explained
Read more: How to solve equations – explainedA method for solving equations. It can be used for linear equations and for any…
·
-
How to solve equations – examples
Read more: How to solve equations – examplesWorked examples of how to solve linear equations.
·
-
Regular polygons
Read more: Regular polygonsTwo questions that demonstrate the properties of regular polygons. They also demonstrate the need to…
·
-
Permutations
Read more: PermutationsAn explanation of what permutations are, and how to calculate the number of choices in…
·
-
Permutations from repetitions
Read more: Permutations from repetitionsHow to calculate permutations when selecting from choices that contain groups of repetitions.
·
-
How do mathematicians think?
Read more: How do mathematicians think?How seeing patterns in new problems makes solving them much easier than expected.
·
-
Decimal fractions
Read more: Decimal fractionsThe usefulness and limitations of decimal fractions.
·