Цілі навчання
- Recognise, explain, and apply “scales”.
- Recognise, explain, and apply “compare”.
- Recognise, explain, and apply “difference”.
Year 3 / Mathematics / Data and reasoning
Bar charts and tables: 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.
3 equal groups contain 10 objects each. How many objects are there, and how can the answer be checked?
30
Explain “scales” 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.
Bar charts and tables
Вісім завдань від базових навичок до екзаменаційного рівня. Спочатку виконайте самостійно.
Calculate 7 + 3 and show two representations connected with “scales”.
Use a number line, place value, or objects.
7 + 3 = 10. Valid representations include number-line jumps and grouped objects.
5 equal groups contain 3 objects each. Find the total and write an addition and multiplication statement.
Add 3 a total of 5 times.
3 + 3 + 3 + 3 + 3 = 5 · 3 = 15.
Continue 6, 8, 10, ... for three more terms and explain the rule.
Check how much each term increases.
12, 14, 16; +2.
A rectangle has sides 9 cm and 4 cm. Find its perimeter and explain why four sides are counted.
Opposite sides are equal.
Perimeter = 9 + 4 + 9 + 4 = 26 cm.
Out of 30 objects, 5 are shaded. What fraction is shaded and how does it simplify?
Put shaded objects over the total.
5/30 = 1/6.
The measurements are 8, 3, 8, and 3. Find the greatest, least, and range.
Range = greatest value minus least value.
Greatest 8, least 3, range 5.
Anna has 20 cards, gives away 4, then shares the rest into 4 equal groups. How many are in each group?
Subtract first, then divide.
20 - 4 = 16; (16) : 4 = 4.
A learner says 7 + 2 = 10. Find the error, correct it, and check the correction.
Check with a number line or inverse subtraction.
7 + 2 = 9; 9 - 2 = 7.
Bar charts and tables
Шість різних завдань від базового рівня до складного з часом, підказками та відповідями.
Homework 1: Calculate 3 + 4 and show two representations connected with “scales”.
Use a number line, place value, or objects.
3 + 4 = 7. Valid representations include number-line jumps and grouped objects.
Homework 2: 6 equal groups contain 6 objects each. Find the total and write an addition and multiplication statement.
Add 6 a total of 6 times.
6 + 6 + 6 + 6 + 6 + 6 = 6 · 6 = 36.
Homework 3: Continue 9, 12, 15, ... for three more terms and explain the rule.
Check how much each term increases.
18, 21, 24; +3.
Homework 4: A rectangle has sides 5 cm and 5 cm. Find its perimeter and explain why four sides are counted.
Opposite sides are equal.
Perimeter = 5 + 5 + 5 + 5 = 20 cm.
Homework 5: Out of 16 objects, 8 are shaded. What fraction is shaded and how does it simplify?
Put shaded objects over the total.
8/16 = 1/2.
Homework 6: The measurements are 4, 4, 4, and 4. Find the greatest, least, and range.
Range = greatest value minus least value.
Greatest 4, least 4, range 0.
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 8 + 4 and show two representations connected with “scales”.
2 балів8 + 4 = 12. Valid representations include number-line jumps and grouped objects.
2. 6 equal groups contain 4 objects each. Find the total and write an addition and multiplication statement.
3 балів4 + 4 + 4 + 4 + 4 + 4 = 6 · 4 = 24.
3. Continue 7, 10, 13, ... for three more terms and explain the rule.
3 балів16, 19, 22; +3.
4. A rectangle has sides 3 cm and 5 cm. Find its perimeter and explain why four sides are counted.
4 балівPerimeter = 3 + 5 + 3 + 5 = 16 cm.
5. Out of 12 objects, 6 are shaded. What fraction is shaded and how does it simplify?
4 балів6/12 = 1/2.
6. The measurements are 9, 4, 9, and 4. Find the greatest, least, and range.
4 балівGreatest 9, least 4, range 5.
7. Anna has 30 cards, gives away 5, then shares the rest into 5 equal groups. How many are in each group?
5 балів30 - 5 = 25; (25) : 5 = 5.
8. A learner says 8 + 3 = 12. Find the error, correct it, and check the correction.
5 балів8 + 3 = 11; 11 - 3 = 8.
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.