Pre-Mathematics and Science — Exploring mt world
Topic
Exploring mt world
Sub-Topic
Things in the surrounding
General Competences
Analytical Thinking, Collaboration, Communication
Specific Competences
Comparing things
Learning Activities
Comparing lengths and widths ,measuring length and width of something using non standard units
Expected Standard
Things measured correctly
References
CBC syllabus level 2
Lesson Goal
By the end of this lesson, learners should be able to compare the lengths and widths of two or more objects found in their immediate surroundings and measure the length and width of at least one object using non‑standard units such as hand spans, foot lengths, or stick lengths with acceptable accuracy.
Rationale
This lesson introduces learners to the concept of comparing and measuring lengths and widths of familiar objects in their environment, building on their prior ability to identify and name common objects such as tables, books, and tree leaves. Understanding how things compare in size helps children make sense of their world, develop early mathematical vocabulary (longer, shorter, wider, narrower), and fosters an appreciation for careful observation and teamwork. Through hands‑on exploration in mixed groups, guided questioning, and direct application in real Zambian contexts, learners will develop the competences of Analytical Thinking, Collaboration, and Communication as they actively compare, measure, and discuss their findings.
Prior Knowledge / Prerequisite Knowledge
Before this lesson, ECE Level 2 learners can already identify and name a variety of common objects in their surroundings (e.g., chair, book, cup, stone, leaf, pencil) and have been exposed to basic comparative language such as "big" and "small" during everyday play and conversation. This prior knowledge will be activated at the start of the lesson through a picture‑based hook and oral questions that ask learners to name objects they see and to use words like "big" or "small" to describe them, creating a natural bridge to the more precise concepts of comparing, measuring, and using non‑standard units.
Learning Environment
- Natural Environment: The teacher will draw on objects from the school compound such as tree trunks, large stones, plant leaves, and sticks. Learners may be taken outside briefly (or the teacher may bring samples inside) to observe and compare the lengths and widths of natural items like a mango leaf versus a banana leaf, or a small stone versus a larger rock.
- Artificial Environment: The classroom is arranged in mixed groups of 4–6 learners at low tables or on a mat, with clear floor space for movement. A display board or wall chart shows pictures of familiar objects (a book, a pencil, a table, a window) with labels. A large chart titled "Things in Our Surrounding" lists common items and leaves blank columns for length and width comparisons done during the lesson.
- Technological Environment: The teacher will use a basic mobile phone or tablet (if available) to show 2–3 short video clips of children in a Zambian village comparing the lengths of fish or the widths of cooking pots, or alternatively, enlarged printed pictures from a magazine or calendar. No projector is assumed; learners gather around the device or picture.
Teaching and Learning Materials / Resources
- Collection of everyday objects: a book, a pencil, a ruler (for teacher reference only), a small cup, a shoe, a piece of string, a leaf, a stick, a stone
- Non‑standard measuring tools: hand‑span cards (each learner traces their hand on card), foot‑length cut‑outs, and uniform sticks of the same length (pre‑cut by the teacher)
- Large chart paper titled "Comparing Lengths and Widths" with columns for object name, length (in hand spans), and width (in foot lengths or stick lengths)
- Learner worksheets: a simple A4 sheet with outline drawings of three objects and blank spaces for recording non‑standard measurements
- Picture cards showing pairs of objects (e.g., a long snake and a short snake, a wide path and a narrow path)
- Masking tape or chalk for marking start and end points on the floor
- Coloured crayons or pencils for learners to record results
Cross-Cutting Issues
The following cross-cutting issues are integrated into this lesson on "Things in the surrounding":
- Environmental Sustainability: As learners compare and measure natural objects such as leaves, sticks, and stones, the teacher explicitly encourages respect for living things by collecting only fallen leaves and sticks from the ground rather than picking fresh plants, and by returning all natural items to their place after the lesson.
- Social and Emotional Learning: Through mixed‑group work, learners practise taking turns, listening to peers' ideas about which object is longer or wider, and expressing their own observations with confidence. The teacher reinforces kind words ("I like your idea," "Let's try your way first") to build a supportive classroom community.
Lesson Progression (Model: 5E Model of Instruction)
| Phase | Teacher Activities | Learner Activities | Assessment Criteria |
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| INTRODUCTION | |||
| ENGAGE 6 min |
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| DEVELOPMENT | |||
| EXPLORE 8 min |
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| EXPLAIN 8 min |
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| ELABORATE 12 min |
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| CONCLUSION | |||
| EVALUATE 6 min |
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Class Exercise
Instructions to learners: Answer all five questions in your exercise book. Show all working where applicable. Time allowed: 10 minutes.
- (Knowledge / Recall) Draw a line under the correct word: A stone is usually (longer / shorter) than a pencil.
- (Comprehension / Fill-in-the-Blank) When something reaches further than another thing, we say it is ________. When something covers more space from side to side, we say it is ________.
- (Application / MCQ) Which of these objects is the longest in a classroom?
A. A chalkboard duster
B. A crayon
C. A teacher's table
D. A learner's shoe - (Analysis / Matching) Draw a line to match each object to its likely non‑standard measurement.
Object Measurement A. A book 1. 3 hand spans long B. A table 2. 1 foot long C. A pencil 3. 5 hand spans wide - (Application / Real-life Zambian Context) Mutinta wants to know if her mat (sleeping mat) is long enough for her to lie on. She does not have a ruler. Describe two different ways she can find out using non‑standard units. Write your answer in 2–3 sentences.
Answer Key (For Teacher Use Only)
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Question 1 — Knowledge / Recall
Answer: shorter (A stone is usually shorter than a pencil.)
Marks: 1 mark for the correct word underlined. -
Question 2 — Comprehension / Fill-in-the-Blank
Answer: longer; wider
Marks: 1 mark each blank (2 marks total). -
Question 3 — Application / MCQ
Answer: C. A teacher's table
Marks: 1 mark for the correct letter. -
Question 4 — Analysis / Matching
Answer: A → 1 (A book — 3 hand spans long); B → 3 (A table — 5 hand spans wide); C → 2 (A pencil — 1 foot long)
Marks: 1 mark for each correct match (3 marks total). -
Question 5 — Application / Real-life Zambian Context
Answer: Mutinta can lie down on the mat and ask a friend to mark where her head and feet reach, then count how many hand spans long that distance is. She can also walk beside the mat using her own feet, heel‑to‑toe, and count how many foot lengths the mat measures. If her body is shorter than the mat’s length in hand spans or foot lengths, the mat is long enough.
Marks: 1 mark for describing one valid non‑standard method; 1 mark for describing a second valid method; 1 mark for relating it to the problem of checking if the mat is long enough (3 marks total).
Total Marks: 10 | Suggested Completion Time: 10 minutes
Lesson Evaluation
Instructions to the teacher: Focus on the competences learners were able to demonstrate, use clear evidence from their work and participation, note any difficulties they faced, reflect on what worked or did not work in your teaching, and state what support or next steps are needed.