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This lesson is suitable for the AQA GCSE Chemistry and AQA Combined Science: Trilogy course introducing students the definition of an Isotope and their difference to elements on periodic table. As a result, this lesson also aims to demonstrate and provide students with further practice of calculating the number of protons, neutrons and electrons for both elements and isotopes.

this lesson additionally includes a worksheet to give students the opportunity to draw the electron configurations for the first 20 elements (as per the spec point)

When using this resource, I would suggest that:

Students answer the ‘Knowledge Checks’ questions on Mini White Boards and without their notes – this is to act as a retrieval practice task and assess whether students are ready to move onto and learn the content of the lesson.
*The questions will appear one-by-one when presenting to allow for use with MWBs. *

The re-teach slide is positioned within each lesson to allow the teacher to immediately re-address any misconceptions or re-teach any sections that students are not able to recall from the ‘Knowledge Check’ questions.

Students answer the ‘Check for Understanding’ questions on Mini White Boards and without any notes or their exercise books open.
*The questions will appear one-by-one when presenting to allow for use with MWBs. *

The ‘Independent Practice’ questions are completed in student exercise books - with the students working silently and independently.
Answers to practice questions are included within the presentation and are revealed one at a time to help students self/peer mark their answers.