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Photosynthesis, water cycle and current

Science

Photosynthesis, water cycle and current

An AR classroom game for Grade 4. Learners can aim with their hands at the camera or play by tapping the screen.

This set has 4 rounds in an interactive ordering activity.

Curriculum indicatorว 1.2 ป.4/1

A look before you play

Sample questions

A few real prompts from the game to help you choose an activity for your class.

  1. Put the steps of photosynthesis in order.

    • make food
    • oxygen is released
    • the leaves take in light and carbon dioxide
    • the roots take in water
    Read the explanation

    A plant takes in its raw materials, makes food, then gives off gas.

  2. Put the whole water cycle in order.

    • it condenses into clouds
    • it falls as rain
    • it runs into rivers and seas
    • water evaporates
    Read the explanation

    Water goes round in a cycle with no end.

  3. Put the path of the current in order.

    • a light bulb
    • back to the battery
    • the battery
    • the wire
    Read the explanation

    Current leaves the source, runs along the wire and returns.

Before you play

Game teaching guide

What children will practise

Orders four processes: photosynthesis, the water cycle, the path of electric current, and the journey of food through the body. Question 1 matches indicator ว 1.2 ป.4/1 (jobs of roots, stems, leaves and flowers); the others link to later-grade indicators ว 3.2 ป.5/3 (water cycle), ว 2.3 ป.6/1 (circuits) and ว 1.2 ป.6/4 (digestion).

What's in the worksheet

4 questions, an ordering game with four steps each - roots take in water > leaves take in light and CO2 > make food > oxygen released - water evaporates > condenses into clouds > falls as rain > runs into rivers and seas - battery > wire > bulb > back to the battery - chewed in the mouth > down the oesophagus > broken down in the stomach > absorbed in the small intestine

How to use it in class

A process review before tests, about 5 minutes in teams. For question 3, have children trace the circuit drawn on the board with a finger. On question 1, mention that in a real plant the first two steps can happen together; the game separates them for clarity. The Thai title does not mention the water cycle or digestion, so you may want to tell children first. You can link it to a class and record it in the gradebook.

Common sticking points

- Question 1: swapping roots take in water and leaves take in light and CO2, which really do happen together. Accept that the order could swap in reality. - Question 4: putting absorbed in the small intestine before the stomach, not knowing the organ order. Have children point down their own body from top to bottom. - Question 2: putting rain first, seeing it as the start. Explain that it is a cycle, but the game starts at evaporation.