Classification keys
I can use a classification key to group and identify objects.
Classification keys
I can use a classification key to group and identify objects.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Objects can be classified based on their similarities and differences.
- You can use a classification key to help decide which group something belongs to.
- The questions on a classification key are layered, each answer leads to a new question.
- Scientists use observable characteristics to identify unknown objects through a series of yes/no questions.
- Scientists use classification keys based on observable characteristics.
Keywords
Group - To group things is to put similar things together.
Classification key - Classification keys are diagrams which help us identify objects using yes/no questions.
Identify - To identify something is to be able to name it correctly.
Yes/no questions - A yes/no question is a type of sentence that asks something and is answered with only yes or no.
Observable characteristics - An observable characteristic is a feature or property of something that we can see or use our other senses to observe.
Common misconception
Children may ask questions that don't have a yes or no answer.
Keep reminding the children that their questions need to have a yes/no answer and that this is how a classification key works to help us to group and identify unknown objects.
To help you plan your year 4 science lesson on: Classification keys, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 4 science lesson on: Classification keys, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 science lessons from the Living things and the environment unit, dive into the full secondary science curriculum, or learn more about lesson planning.
Equipment
Worksheet and your own objects if you chose to do some more classification keys of your own.
Content guidance
- Exploration of objects
Supervision
Adult supervision recommended
Licence
Lesson video
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Starter quiz
6 Questions
cow
frog
snake
shark
penguin
Exit quiz
6 Questions
