58 Group 2 Post 16 Working in groupsSelf assessmentPeer assessmentSharing objectives and criteriaQuestioningUsing feedbackUsing tests

In this activity, students construct a mind map to describe and compare the properties of the elements magnesium, calcium, strontium and barium and their compounds.

Learning objectives

Students will be able to:

  • describe and compare the properties of the elements magnesium, calcium, strontium and barium and their compounds.

Sequence of activities

Burn of a piece of magnesium taking care to tell students not to look directly at the flame.

Explain to them that they are going to produce a mind map to describe and compare the properties of the elements magnesium, calcium, strontium and barium, and their compounds.

Ask for suggestions about the properties that they should include and the detail that would be helpful.

Circulate and support with prompts while students:

  • work individually
  • construct a mind map to describe and compare the properties of Group 2 (They might draw on paper or use a word processor or use mind mapping software.)
  • exchange their mind map with a partner.

Hand out a Mind map comments sheet to each student.

Support the students as they:

  • write comments about their partners’ mind map
  • return the mind maps
  • discuss the comments that they have made with each other.

Distribute the prepared Group 2 mind map.

Ask the students to:

  • complete section 3 of the Mind map comments sheet
  • hand in their map and comments.

Give written feedback. Acknowledge achievement and make further comment that helps the student to take their next steps.

Assessment for learning commentary

The explanation alongside the demonstration makes explicit the purpose of the activity.

Knowing that their work will be assessed by their peers increases student motivation. In the process of assessing the work of another, students inevitably consider the quality of their own work. The prepared Group 2 mind map shows students the expected outcome – and, having constructed their own map, they will be more able to appreciate the key points.

Written feedback serves to validate both peer and self assessment.

Resources

For each student

Download Word Download PDF Mind map comments sheet
Download Word Download PDF Group 2 mind map

For the demonstration

  • Magnesium ribbon
  • Pair of tongs
  • Bunsen burner.