B1 Science · Term 1 Week 9: Materials

Lesson notes

Learning Objectives

Indicator: B1.1.2.3.1 - Demonstrate understanding that a mixture is two or more objects or materials put together

By the end of the lesson, learners can:

Combine two different materials (such as gari and sand, or sugar and water) and identify that a mixture has been formed.
State in their own words that a mixture is formed when two or more objects or materials are put together.
Observe and describe what happens when two materials are mixed (for example, some mix evenly, some do not).
Recognise that the individual materials in a mixture can still be seen or identified, and that no new material is formed.
Give simple names to mixtures they create, such as “gari and milo mixture” or “sand and salt mixture”.

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Curriculum details

Strand: Diversity of Matter (Strand 1)
Sub-strand: Materials (1.2)
Content standard: B1.1.2.3 - Understand mixtures, the types, their formation, uses and ways of separating them into their components
Indicator: B1.1.2.3.1 - Demonstrate understanding that a mixture is two or more objects or materials put together
Suggested placement: Term 1, Week 9 (Week 9 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: Science Curriculum (Basic 1-3), 2019, p. 23
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

- Present several different materials to the groups such as gari, sand, water, saw dust, milo, salt, sugar, milk powder, etc.
- Learners work in groups to combine the materials in any proportion, two at a time, e.g. gari and sand; milo and milk powder; sugar and water etc. and describe what happens in each case.
- Learners find-out whether the products they have formed are the same as the individual materials.
- In groups, learners give names to the combinations they have formed.
- Provide learners with samples of mixtures, e.g. A mixture of different coloured beads, a mixture of chocolate pellets of different colours to separate.
NB: The idea is for them to understand that when they mix two or more things together, they form a mixture and that no new thing forms even though the starting and ending substances may look different from each other.