Reflection: Student Ownership Atomic Math - Section 5: Explanation/Guided practice

 

I like to have students work on this independently, so that individual student math skills can be illustrated.  The practice of Mathematical and Computation Thinking is one of the practices that students need to illustrate in this lesson and at this level should be easily completed individually.

The process of calculating "Atomic Math" is simply done using subtraction and addition.  I have found in the past that students will sometimes copy answers when completing this task in a group setting. It's important for the student to be able to illustrate mastery of this for further understanding of the rest of standard HS-PS1:  Understanding of valence electrons, Coulombic charge and the periodic table. 

In science class there are many opportunities to perform group work, i.e. labs and investigations, so I will have students perform individual work anytime questioning, argumentation or discussion isn't part of the lesson.  In this particular lesson there is no need for discussion, it's merely a matter of practicing the problems.

  Individual work vs group work
  Student Ownership: Individual work vs group work
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Atomic Math

Unit 1: Unit 1-The Atom
Lesson 4 of 11

Objective: SWBAT differentiate between the three subatomic particles in terms of charge and location. SWBAT calculate the mass of an atom using protons, neutrons and atomic number.

Big Idea: Students will practice determining what an atom's mass is in relation to number and type of subatomic particles.

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