Maths Mela, period by period — fitted to your timetable.
Tell Meyy your periods and their length; it plans every chapter of Maths Mela to fit, and you tick off sections as you teach.
Stringing Symmetry — Two Colours, One Necklace
Lesson
Children who have coloured bead strings can physically fold the paper to check — this concrete fold-and-check is the anchor for the word 'symmetrical.' A common error is thinking that any split of the 8 beads into two halves makes the mala symmetrical; ask children to show that the left half and right half must look the same bead-for-bead. Let us Do Q3b is routed as take-home so children explore the 6+2 combination at their own pace.
0–10Children receive bead outlines (or draw their own string of 8 circles). They colour 4 beads in one colour and 4 in a second colour, making several different arrangements — Let us Do Q1, p.178 ("Colour the beads using two colours to show malas..."). Pairs compare their completed strings and informally describe what they notice.
10–25The class folds one of their coloured strings in half (or imagines the fold) and asks: do both halves look the same? This concrete check introduces the word symmetrical. Children then work on Let us Do Q2, p.179 ("tick the malas that are symmetrical") and Let us Do Q3a, p.179 ("tick the symmetrical malas and cross the non-symmetrical ones from given pictures"), explaining their reasoning to a partner before marking.
25–40A quick count-round: each child holds up one string and the class gives a thumbs-up (symmetrical) or thumbs-down (not symmetrical), with one child stating why. The teacher surfaces the pattern: a mala is symmetrical when both halves are exactly the same. Additional practice from the same page is noted for take-home — Let us Do Q3b, p.179 ("use 6 and 2 beads of two colours to make symmetrical malas").
Homework
Use 6 beads of one colour and 2 beads of another colour to make symmetrical malas. (**Let us Do Q3b, p.179**)
Let us Do Q1, p.178 — Colour the beads in the strings using two colours to show the malas that you have made (4 beads of one colour, 4 of another).
A bead necklace has 8 beads: some red and some blue. Which arrangement makes the necklace symmetrical?
- A Blue, Blue, Blue, Blue, Red, Red, Red, Blue
- B Red, Blue, Blue, Red, Red, Blue, Blue, Red
- C Red, Blue, Red, Blue, Blue, Red, Blue, Red
- D Red, Red, Red, Blue, Red, Blue, Blue, Blue
B. Red, Blue, Blue, Red, Red, Blue, Blue, Red
What each wrong option reveals
- A The child may be choosing an arrangement with a colour pattern without verifying that folding the necklace in half produces matching halves.
- C The child may be thinking of alternating colours rather than checking that the two halves are identical when folded.
- D The child may not be checking whether both halves are the same; this arrangement has unequal colour groups and the halves differ.
Also saved as 6 periods or 8 periods.
- 2Fold, Trace, and Find the Line — Rangoli Symmetry
Lesson - 3Complete the Rangoli — Drawing the Missing Half
Lesson - 4Fold, Cut, Reveal — Making a Symmetrical Cat Mask
Lesson - 5Counter by Counter — Playing the Mirror Game
Lesson - 6Odd One Out and Mirror Grids — Pushing Symmetry Thinking
Lesson - 7Fill Without Gaps — Rangometry Shapes and Tessellating Paths
Lesson - 8Reading the Map — Finding Your Way at the Fair
Lesson - 9Through the Maze — Navigating Out of the Fair
Lesson - 10The Surajkund Fair — Symmetry, Tiles, and Maps Come Together
Lesson
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