LESSON 42 SYNOPSIS (5 October – 11 October 2026)

09 October 2026

At Matrix Math, we provide an engaging and detailed learning experience for your child. Matrix Math Tuition programme focuses on essential concepts that will further strengthen their mathematical foundation. The lesson synopsis gives parents a clear preview of the topics and problem-solving skills that will be covered in class. At Matrix Math, we ensure that each lesson is designed to build confidence and mastery in math, preparing students for success in both school and beyond.

Primary 1 Lesson 42

Select 8 is a revision lesson covering numbers to 100, money, time, length and multiplication. Students handle mixed word problems that require choosing the correct operation.

Reinforce comparison language, recognising when “more than” requires subtraction
Apply part-whole thinking to find a missing part from a total
Consolidate before-and-after reasoning to work backwards to an original amount
Practise multi-step problems combining addition and subtraction within 100
Strengthen money sense by matching coins and notes to given amounts
Reinforce reading time, measuring length and forming equal groups

Primary 2 Lesson 42

This lesson builds foundation in Shapes, where students learn to see how figures are built from simpler parts. The lesson closes with an early introduction to the supposition method.

Learn to identify basic shapes within combined figures
Practise counting shapes systematically, including triangles hidden within larger figures
Apply shape decomposition by drawing lines to split a figure into given shapes
Strengthen classification of figures by straight lines and curves
Reinforce counting of flat surfaces and curved surfaces on solids
Introduce the supposition method, assuming all items are the same and adjusting for the extra legs or wheels

Primary 3 Lesson 42

Select 12 is a revision lesson that integrates fractions, area and perimeter, angles, money, mass and time. Students tackle multi-step word problems that combine several concepts.

Reinforce equivalent fractions to find a fraction between two given fractions
Apply area and perimeter reasoning to composite and overlapping figures
Consolidate multiplication and division in multi-step comparison problems
Strengthen equal value reasoning, where one group of items matches another in mass or cost
Reinforce angle classification against a right angle
Practise working backwards with time intervals to find a starting time

Primary 4 Lesson 42

Select 13 is a revision lesson that integrates fractions, decimals, area and perimeter, data analysis and patterns. Students apply structured methods to challenging multi-step problems.

Apply fractions to compare two totals that leave equal remainders
Strengthen the unchanged quantity method when one part stays fixed as another is added
Consolidate constant difference in spending and age problems
Practise transfer reasoning to equalise quantities among three people
Reinforce area and perimeter of composite figures built from squares and rectangles
Strengthen reading of bar graphs and pie charts
Learn to extend number patterns, including repeating sequences

Primary 5 Lesson 42

Select 15 is a revision lesson that integrates whole numbers, fractions, percentage, area, volume and geometry. Students tackle non-routine problems that demand structured, multi-step reasoning.

Apply before-and-after models to internal transfers where the total stays unchanged
Strengthen grouping methods for equal numbers of items and coin sets
Consolidate working backwards through successive fraction of a remainder steps
Reinforce triangle area relationships using shared heights and parallel lines
Practise volume reasoning, including views of solids built from cubes
Apply successive percentage changes, including discount and GST
Strengthen angle properties of trapeziums and rhombuses

Primary 6 Lesson 39

Lesson 39 is the last lesson for Primary 6 for the 2026 academic year.