Earth & Space
Using keys to sort plants by their features — and answering our enquiry: how can living things be grouped and classified?
⏱ Whole lesson ≈ 44 min · pick a tier in the bar, or leave on "All"
Recap of last lesson: grouping plants. Whole-block review too.
Flowering plants make ____.
What yes/no question would separate a rose from a fern?
Keys work for plants using closed questions about features.
We classify plants the same way as animals — with a key of yes/no questions about features: "Does it have flowers?", "Does it have broad leaves?", "Does it make cones?" Good questions are about facts, not opinions.
Plant keys use ____ / no questions.
Write a good yes/no question to sort plants.
Why is “Is it pretty?” a poor key question?
Teacher models building a plant key. Watch to recall plant features.
Swap the clip: change the ID after /embed/ (now cgVlrtGnG6s).
Walk a plant down the key together.
Flowers? → no → Fronds? → yes → fern | Flowers? → yes → Broad leaves? → yes → daisy
Play the animation. Bust: questions can be broad or based on opinion.
"Does it have flowers?" splits plants in two; the next question narrows it to a fern.
Watch for: broad questions and opinion questions; thinking plants can't be classified with keys.
Sort questions: would each help sort plants?
On your own. Sort each question, then answer the big enquiry.
Tap a card to sort it…
Sort the cards. Then finish: Living things can be grouped by their ____.
Sort them, then write two good yes/no questions to sort plants.
Sort them, then answer the enquiry: how can living things be grouped and classified?
Answer at your tier, then hand it in. End of the block.
Answer our enquiry: how can living things be grouped and classified?