Phase 1 – Defined Understanding

► Questions to Investigate

1. What is an element? 
2. What is the Periodic Table of Elements? 
3. How is the Periodic Table of Elements arranged? 

Phase 2 – Dynamic Understanding

► Investigation One Summary – Lab Goals

In Investigation One, students will investigate the Periodic Table of the Elements and the properties of elements contained within the Table. During this Investigation, students will:

1. Used a Venn Diagram to compare and contrast metals and non-metals.

2. Identified metal and non-metal elements on the Periodic Table.

3. Described the physical properties of metals and non-metals.

4. Located elements on the Periodic Table using the following:

• atomic number
• periods and groups
• atomic mass
• symbol

► Investigation One Summary – Learning Goals

Through these experiments, students will conclude that:

1. Elements are substances that cannot be broken down into smaller components through chemical reactions.

2. The Periodic Table of the Elements is a table that organizes elements according to their physical and chemical properties.

3. Elements with similar physical and chemical properties are grouped together on the table. For example, elements with metallic properties are grouped on the left side of the table while elements with nonmetallic properties are grouped on the right side of the table. The columns in the Periodic Table are referred to as groups and the rows are referred to as periods. The elements increase in atomic number from left to right.

Phase 3 – Deeper Understanding 

► In-Depth Classroom Discussion

These questions can be used to elicit in-depth discussions based on the lab experience. Teachers may use any or all of these discussion points depending on the time available.