| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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The reactivity of a metal is related to its tendency to form positive ions. |
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What does the reactivity of a metal depend on? |
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The metals potassium, sodium, lithium, calcium, order of reactivity is from their reactions with water and dilute acids. |
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How can the reactivity of group 1 metals be compared using a practical investigation? Show the structure of one group 1 metal or use fluffly balls to show it. Show students how it donates an electron to form an ion and reactive. Ask students to draw the atomic structure of other group 1 metals and the ion formed. Use these to describe deduce why group 1 reactivity increases down the group |
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Metals react with oxygen to produce metal oxides. |
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What happens when a metal reacts with oxygen? Write word and symbol equations for metal reactions from the standard equation. Differentiate for the group
stretch - word equations
challenge - write symbol equations from the given word equation that dont need further balancing
super challenge - equations that need balancing too |
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The reactions are oxidation reactions because the metals gain oxygen. |
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What happens to metals in an oxidation reaction? Remind students about the phrase OIL RIG
oxidation is loss of electrons, reduction if gain of electrons. |
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Students should be able to explain reduction and oxidation in terms of loss or gain of oxygen. |
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What is meant by the term 'reduction'? |
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Oxidation is the loss of electrons and reduction is the gain of electrons. |
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What happens in terms of electrons during reduction and oxidation reactions? |
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Students should be able to explain how the reactivity of metals with water or dilute acids is related to the tendency of the metal to form its positive ion |
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Why is potassium more reactive than lithium? EW: Describe and explain the reactivity in group 1 metals |
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