الأسبوع 16 · المحور 3 «كيف يعمل العالم؟»، الباب 1 «أنماط التغير» (أ): النمو والنسل والصفات الموروثة · 3 دروس
1
How I have changed
Discover P3 Term 2: Axis 3, Chapter 1
GoalShow how I have changed with a timeline of four things I can do, and compare my timeline with a friend’s.
New words
change · to become different over timeskill · something you can do well because you learned ittimeline · a line that shows events in the order they happenedpractise · to do something again and again to get better at it
Explanation
When you were a baby you could not walk, talk or feed yourself. Since then your body has grown and you have learned many skills. Learning needs time, trying and practice, and mistakes are part of it. A timeline puts changes in order, from the earliest to the latest. Mariam’s timeline shows four changes in what she can do, at ages 1, 3, 5 and 7. Everybody grows and changes, but not at the same age: one child rides a bike at 6, another at 8, and both are doing well. When we compare two timelines, we look for something that is the same and something that is different. Knowing how much we have changed helps us guess how much more we can learn.
Worked examples
A person changes through life, step by step: baby, child, grown-up, older person.
Skill
Youssef
Salma
Walked
age 1
age 1
Rode a bike alone
age 6
age 8
Same and different. Youssef and Salma compare timelines. Same: both walked at age 1. Different: Youssef rode a bike alone at 6 and Salma at 8. The gap is 8 − 6 = 2 years. Salma is not “late”: she learned at her own time.
plays in shallow water→floats with a board→kicks his legs→swims across the pool
Learning has steps. Omar learned to swim in four steps, and each step needed practice.
Class activity
My timeline. Cut a paper strip 16 cm long. Mark a point every 2 cm and write the ages 0 to 8 under the marks. Draw four things you learned to do and glue each at the right age. Then visit three classmates and look at their timelines. For each one write one thing that is the same and one thing that is different in a table with the columns “Friend”, “Same” and “Different”. Listen kindly: there is no best timeline.
Practice
1
On Mariam’s timeline, how many years passed between walking and riding a bike?
She walked at age 1 and rode a bike at age 7. 7 − 1 = 6 years.
2
Put these in order, from earliest to latest.
Crawls (B), walks (C), rides a bike (A).
3
Farida walked at age 1 and read a short book alone at age 6. Karim walked at age 1 and read one at age 5. Name one thing that is the same and one that is different.
Same: both walked at age 1. Different: Farida read at 6 and Karim at 5.
4
Why does practice matter when we learn a new skill?
Each time we try again we get a little better, so the skill becomes easier.
