☰ Contents · Mathematics

What a word problem is and how to solve it

Lessons 75–78 · 4 lessons · I.V. Repyova, Y.V. Zemlina. Mathematics Grade 1, Parts 1–4. Novda Edutainment, 2023
78

Ways to present a problem

Textbook Part 3, pp. 10–11
GoalRead and make problem conditions as text, a picture, a short note and a diagram.
New words
text · matnpicture · rasmshort note · qisqacha shartdiagram · sxema
Explanation

A problem’s condition can be given as text, a picture, a short note or a diagram. Short note: “Watched — 12, To watch — 24, Total — ?”. In a diagram, the whole is a long bar and the parts are pieces of it.

Worked examples
Text: Abror has watched 12 learning films and has 24 more. In all: 12 + 24 = 36.
Diagram: [——12——|————24————] = ? → 36
Class activity

Race a classmate: fill a 3×3 “magic square” with the numbers 1–9 so each row and column adds up to 15.

Practice
1
Short note: There were — 45, Came — 13, Now — ?
2
Diagram: whole 29, one part 9. Other part?
3
Picture: 🤖🤖🤖🤖 and 🤖🤖 more. How many robots?
4
The middle row of a magic square: 3, 5, _. It must add up to 15.