Цілі навчання
- Recognise, explain, and apply “right angle”.
- Recognise, explain, and apply “parallel and perpendicular”.
- Recognise, explain, and apply “properties”.
Year 3 / Mathematics / Measurement and geometry
Angles, lines and 2D/3D shapes: structured theory, worked examples, answered practice, and a mastery checklist for Year 3.
Розділ
Ключові ідеї глави у зрозумілій послідовності перед практикою.
Write the number in a useful form, check sign and place value, and only then choose the operation. A clear representation reduces mechanical errors.
Fractions, decimals, percentages, ratios, and powers can describe the same quantity. Changing form is a solving tool, not a separate trick.
Estimate before and after the exact calculation. The sign, order of magnitude, and unit must agree with the problem context.
Use a suitable representation, state the rule, and keep every numerical or algebraic step equivalent. Finish with estimation, an inverse operation, or substitution as a check.
Use a suitable representation, state the rule, and keep every numerical or algebraic step equivalent. Finish with estimation, an inverse operation, or substitution as a check.
Use a suitable representation, state the rule, and keep every numerical or algebraic step equivalent. Finish with estimation, an inverse operation, or substitution as a check.
Mathematics
Дотримуйтесь методу крок за кроком і перевіряйте обґрунтування.
5 equal groups contain 6 objects each. How many objects are there, and how can the answer be checked?
30
Explain “right angle” in your own words and use a picture, objects, a table, or a simple measurement to support it.
A complete explanation connects the correct idea, a clear representation, and a sensible check.
Angles, lines and 2D/3D shapes
Вісім завдань від базових навичок до екзаменаційного рівня. Спочатку виконайте самостійно.
Calculate 3 + 5 and show two representations connected with “right angle”.
Use a number line, place value, or objects.
3 + 5 = 8. Valid representations include number-line jumps and grouped objects.
2 equal groups contain 6 objects each. Find the total and write an addition and multiplication statement.
Add 6 a total of 2 times.
6 + 6 = 2 · 6 = 12.
Continue 9, 13, 17, ... for three more terms and explain the rule.
Check how much each term increases.
21, 25, 29; +4.
A rectangle has sides 5 cm and 6 cm. Find its perimeter and explain why four sides are counted.
Opposite sides are equal.
Perimeter = 5 + 6 + 5 + 6 = 22 cm.
Out of 24 objects, 8 are shaded. What fraction is shaded and how does it simplify?
Put shaded objects over the total.
8/24 = 1/3.
The measurements are 4, 5, 4, and 5. Find the greatest, least, and range.
Range = greatest value minus least value.
Greatest 5, least 4, range 1.
Anna has 14 cards, gives away 7, then shares the rest into 1 equal groups. How many are in each group?
Subtract first, then divide.
14 - 7 = 7; (7) : 1 = 7.
A learner says 3 + 4 = 8. Find the error, correct it, and check the correction.
Check with a number line or inverse subtraction.
3 + 4 = 7; 7 - 4 = 3.
Angles, lines and 2D/3D shapes
Шість різних завдань від базового рівня до складного з часом, підказками та відповідями.
Homework 1: Calculate 6 + 6 and show two representations connected with “right angle”.
Use a number line, place value, or objects.
6 + 6 = 12. Valid representations include number-line jumps and grouped objects.
Homework 2: 3 equal groups contain 9 objects each. Find the total and write an addition and multiplication statement.
Add 9 a total of 3 times.
9 + 9 + 9 = 3 · 9 = 27.
Homework 3: Continue 5, 10, 15, ... for three more terms and explain the rule.
Check how much each term increases.
20, 25, 30; +5.
Homework 4: A rectangle has sides 8 cm and 2 cm. Find its perimeter and explain why four sides are counted.
Opposite sides are equal.
Perimeter = 8 + 2 + 8 + 2 = 20 cm.
Homework 5: Out of 16 objects, 4 are shaded. What fraction is shaded and how does it simplify?
Put shaded objects over the total.
4/16 = 1/4.
Homework 6: The measurements are 7, 6, 7, and 6. Find the greatest, least, and range.
Range = greatest value minus least value.
Greatest 7, least 6, range 1.
35 хвилин / 30 балів
Повний тест із таймером, балами та зразками відповідей.
Start the timer when ready, work without notes, show every step, and open model answers only after finishing.
1. Calculate 4 + 6 and show two representations connected with “right angle”.
2 балів4 + 6 = 10. Valid representations include number-line jumps and grouped objects.
2. 3 equal groups contain 7 objects each. Find the total and write an addition and multiplication statement.
3 балів7 + 7 + 7 = 3 · 7 = 21.
3. Continue 3, 8, 13, ... for three more terms and explain the rule.
3 балів18, 23, 28; +5.
4. A rectangle has sides 6 cm and 2 cm. Find its perimeter and explain why four sides are counted.
4 балівPerimeter = 6 + 2 + 6 + 2 = 16 cm.
5. Out of 36 objects, 9 are shaded. What fraction is shaded and how does it simplify?
4 балів9/36 = 1/4.
6. The measurements are 5, 6, 5, and 6. Find the greatest, least, and range.
4 балівGreatest 6, least 5, range 1.
7. Anna has 24 cards, gives away 8, then shares the rest into 2 equal groups. How many are in each group?
5 балів24 - 8 = 16; (16) : 2 = 8.
8. A learner says 4 + 5 = 10. Find the error, correct it, and check the correction.
5 балів4 + 5 = 9; 9 - 5 = 4.
Розділ
Джерела програми; порядок тем уточнюйте у школі та викладача.
Mathematics
Year 3: структурований маршрут з математики та фізики з розділами, практикою і наступними кроками.
Структура відповідає підручнику й допомагає організувати вивчення теми.
Теми, де найчастіше виникають помилки або потрібна додаткова практика.
З чого почати: підручник, daily material, PDFs, videos і worked examples.
Цільова практика перед full tests, щоб coverage було зрозумілим.
Як вимірювати прогрес у главі і коли додавати її до загального mock.
Що робити після глави і як вона пов'язана з наступним розділом.
Примітка: офіційну екзаменаційну програму кожного року завжди уточнюйте у школі, викладача та за поточними офіційними джерелами.