Visual math guides
Use a diagram to see what the numbers mean, follow one complete example, then try a short check before opening a printable worksheet.
Choose a method to review
Choose the point that is causing trouble, work through the example, then use the linked worksheet to practise it with new numbers.
Area or perimeter: how to tell which one you need
Use a labelled diagram to distinguish area from perimeter, choose the correct formula, and check the units in rectangle problems.
Open the guide →02Work backwards · Grades 4–6Find a missing side from area or perimeter
Work backwards from a rectangle’s area or perimeter to find an unknown side, with diagrams, examples, checks, and practice.
Open the guide →03Written multiplication · Grades 4–5How to multiply two-digit numbers in columns
Learn two-digit by two-digit written multiplication with aligned place values, partial products, regrouping, and a worked example.
Open the guide →04Place-value explanation · Grades 4–5Why does the second partial product shift left?
Understand why the second row in two-digit multiplication starts in the tens column instead of memorising an add-a-zero shortcut.
Open the guide →05Composite area · Grades 4–6How to find the area of a composite shape
Split an L-shaped figure into rectangles, calculate each area, and combine the parts without double-counting or missing a region.
Open the guide →06Triangle area · Grades 5–6Why is triangle area divided by two?
See how two matching triangles form a parallelogram and why a triangle’s area is one half of base times perpendicular height.
Open the guide →07Regrouping · Grades 3–5Where do regrouped digits go in multiplication?
Follow place value through a written multiplication example and place each regrouped ten above the correct next column.
Open the guide →08Measurement units · Grades 3–6Length units and square units are not the same
Compare one-dimensional length with two-dimensional area and learn when to use cm, m, cm², and m² in measurement answers.
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