Learning objectives
- Recognise, explain, and apply “συλλογή δεδομένων”.
- Recognise, explain, and apply “καταμέτρηση”.
- Recognise, explain, and apply “απάντηση ερωτήσεων”.
Greek Primary Grade 1 / Mathematics / Δεδομένα και επίλυση
Απλοί πίνακες και εικονογράμματα: structured theory, worked examples, answered practice, and a mastery checklist for Greek Primary Grade 1.
Unit
The essential chapter ideas in a clear sequence before practice.
Mark every given on the diagram and state the target clearly. Start from a relationship that connects exactly those quantities.
Mathematics
Start with theory and core examples, then move to worked exercises and short test-style practice.
The structure follows the official textbook layout and is used to organise study.
The areas that usually create mistakes or need extra revision.
Every geometric step needs a property, theorem, or definition. A result without justification is not a complete proof.
Length, area, volume, and angle use different units. Round only at the end and keep sufficient intermediate precision.
Draw and label every given before choosing a property or formula. Finish with estimation, an inverse operation, or substitution as a check.
Draw and label every given before choosing a property or formula. Finish with estimation, an inverse operation, or substitution as a check.
Draw and label every given before choosing a property or formula. Finish with estimation, an inverse operation, or substitution as a check.
Mathematics
Follow the method step by step and check why every step is valid.
A rectangle is 6 cm long and 2 cm wide. Find its perimeter and, where covered, its area.
Perimeter 16 cm, area 12 cm².
Explain “συλλογή δεδομένων” 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.
Απλοί πίνακες και εικονογράμματα
Eight graded tasks from core fluency to exam-style application. Work independently before opening a hint or answer.
Calculate 3 + 2 and show two representations connected with “συλλογή δεδομένων”.
Use a number line, place value, or objects.
3 + 2 = 5. Valid representations include number-line jumps and grouped objects.
4 equal groups contain 6 objects each. Find the total and write an addition and multiplication statement.
Add 6 a total of 4 times.
6 + 6 + 6 + 6 = 4 · 6 = 24.
Continue 9, 15, 21, ... for three more terms and explain the rule.
Check how much each term increases.
27, 33, 39; +6.
A rectangle has sides 5 cm and 3 cm. Find its perimeter and explain why four sides are counted.
Opposite sides are equal.
Perimeter = 5 + 3 + 5 + 3 = 16 cm.
Out of 40 objects, 8 are shaded. What fraction is shaded and how does it simplify?
Put shaded objects over the total.
8/40 = 1/5.
The measurements are 4, 2, 4, and 2. Find the greatest, least, and range.
Range = greatest value minus least value.
Greatest 4, least 2, range 2.
Anna has 28 cards, gives away 7, then shares the rest into 3 equal groups. How many are in each group?
Subtract first, then divide.
28 - 7 = 21; (21) : 3 = 7.
A learner says 3 + 6 = 10. Find the error, correct it, and check the correction.
Check with a number line or inverse subtraction.
3 + 6 = 9; 9 - 6 = 3.
Απλοί πίνακες και εικονογράμματα
Six distinct assignments from core fluency to challenge, each with an estimated time, hint, and answer guide.
Homework 1: Calculate 6 + 3 and show two representations connected with “συλλογή δεδομένων”.
Use a number line, place value, or objects.
6 + 3 = 9. Valid representations include number-line jumps and grouped objects.
Homework 2: 5 equal groups contain 9 objects each. Find the total and write an addition and multiplication statement.
Add 9 a total of 5 times.
9 + 9 + 9 + 9 + 9 = 5 · 9 = 45.
Homework 3: Continue 5, 7, 9, ... for three more terms and explain the rule.
Check how much each term increases.
11, 13, 15; +2.
Homework 4: A rectangle has sides 8 cm and 4 cm. Find its perimeter and explain why four sides are counted.
Opposite sides are equal.
Perimeter = 8 + 4 + 8 + 4 = 24 cm.
Homework 5: Out of 24 objects, 4 are shaded. What fraction is shaded and how does it simplify?
Put shaded objects over the total.
4/24 = 1/6.
Homework 6: The measurements are 7, 3, 7, and 3. Find the greatest, least, and range.
Range = greatest value minus least value.
Greatest 7, least 3, range 4.
35 minutes / 30 marks
A timed, full-mark self-assessment with model-answer guidance.
Start the timer when ready, work without notes, show every step, and open model answers only after finishing.
1. Calculate 4 + 3 and show two representations connected with “συλλογή δεδομένων”.
2 marks4 + 3 = 7. Valid representations include number-line jumps and grouped objects.
2. 5 equal groups contain 7 objects each. Find the total and write an addition and multiplication statement.
3 marks7 + 7 + 7 + 7 + 7 = 5 · 7 = 35.
3. Continue 3, 5, 7, ... for three more terms and explain the rule.
3 marks9, 11, 13; +2.
4. A rectangle has sides 6 cm and 4 cm. Find its perimeter and explain why four sides are counted.
4 marksPerimeter = 6 + 4 + 6 + 4 = 20 cm.
5. Out of 54 objects, 9 are shaded. What fraction is shaded and how does it simplify?
4 marks9/54 = 1/6.
6. The measurements are 5, 3, 5, and 3. Find the greatest, least, and range.
4 marksGreatest 5, least 3, range 2.
7. Anna has 40 cards, gives away 8, then shares the rest into 4 equal groups. How many are in each group?
5 marks40 - 8 = 32; (32) : 4 = 8.
8. A learner says 4 + 2 = 7. Find the error, correct it, and check the correction.
5 marks4 + 2 = 6; 6 - 2 = 4.
Unit
Curriculum reference sources. Always confirm the teaching sequence with the school and tutor.
Where to start: textbook, daily material, PDFs, videos, and worked examples.
Targeted practice before full tests so coverage is clear.
How to measure progress in this chapter and when it enters a cumulative mock.
What to do after finishing the chapter and how it connects to the next unit.
Note: for the official examinable syllabus of each school year, always confirm with the school, tutor, and current Ministry/IEP announcements.