Mix concrete, using a mortar box/wheelbarrow.

Mixing should include

• selecting PPE, materials, and tools
• creating a workable consistency by adding the correct proportions of sand, cement, water, and aggregate.

Process/Skill Questions:

• What are the ingredients of a concrete mix?
• What are the characteristics of properly mixed concrete?
• How does using a mortar box to mix concrete compare to using an electric mixer?