Lesson Plan Template s7

Lesson Plan Template Name: __Kelly Longacre______Date: ______

Class and Grade: Agriculture Mechanics II

Enterprise/Unit/Area: Becoming Familiar with Concrete

Job (Lesson Title): Using Concrete in forms or molds to make stepping stones

Teaching how to mix and use concrete in the shop setting. Situation/Rationale:

The student will demonstrate the use of current technology and principles of Colorado Ag Education Agricultural Masonry Standards and Competencies

Colorado Model Content Standard(s): Students will be able to mix and pour cement, finish cement, reinforce cement, Student Learning determine appropriate admixtures, estimate materials for the job, layout, and set and Objectives: treat concrete forms.

Time: 5, 90 minutes periods of class time. One for questions and answers. Day two develop a plan for the project, size, shape and determine materials list. Day Three construct molds. Day four pour molds. Day five remove stepping-stones from the molds.

Agricultural Mechanics, Fundamentals and Applications, 4th Edition, Ray Herren, Resource(s): Elmer Cooper.

Concretenetwork.com videos on concrete forms, counter tops. Molds etc.

DIY.com videos on concrete stepping stones

The process I use is the same as making concrete counter tops. The use of melamine board and an electric sander to get he air bubbles out.

Instructions, Tools, Concrete tools: finishing trowel, pointing trowel, straight edge, and float. Equipment, and Supplies: Form tools: table saw, cordless drill, chalking gun and electric sander.

Concrete mix, 80lbs bag equals two to three stones, melamine coated particleboard for the forms, and chalking. Note if you use regular plywood you will need to coat it something to keep from sticking, cooking spray works.

Decorative items include tile, sea shells, glass beads etc.

Optional items include die for cement die, items to shape molds quick rite circle molds for posts work great for circles and heart shapes.

Lesson Plan Template Name: __Kelly Longacre______Date: ______What would we need to know in order to make a concrete stepping-stone? Introduction/Statement of Concrete is a mixture of? the Problem/Question Development: Methods for constructing a strong mold?

What are some different finishing techniques?

What determines the strength on concrete?

How to calculate cubic yards of concrete?

What are some treatments for concrete forms?

Why should concrete be reinforced?

What does it mean to cure concrete?

Show a video clip of concrete counter tops, stepping stones to create an interest. Interest Also show some sample stepping-stones. Approach/Motivation: Students will be able to mix and pour cement, finish cement, reinforced cement Objective 1: stepping stones

Objective 2: Students will be able to estimate materials for the concrete molds and concrete needed to fill the molds.

Objective 3: Students will be able to layout, and set and treat concrete forms.

What would we need to know in order to make a concrete stepping-stone? -OR- Concrete is a mixture of sand, gravel, water and Portland cement. Solutions/Analysis for Questions: Methods for constructing a strong mold include accurate measurement, using screws instead of nails to hold forms together. Chalk the edges to prevent water from seeping away.

What are some different finishing techniques include a brushed finish, pebble finish,

Lesson Plan Template Name: __Kelly Longacre______Date: ______smooth finish.

The precise proportions of cement, water and gravel determine the strength on concrete.

To calculate cubic yards by multiplying length X width Depth of the concrete form. Inches must be converted to feet. 4 inches equals 1/3 foot.

Some treatments for concrete forms include using used motor oil on wood for large pours and for small pours such as our stepping stones use melamine particle board or coat the board with cooking spray to keep it from sticking. Other treatments include dieing the concrete.

Concrete should be reinforced to strengthen the concrete to hold weight.

Curing concrete is the drying of the concrete in s slow process to keep the concrete from cracking.

Review/Summary:

Create molds and pour concrete stepping-stones. Application--Extended Classroom Activity: Create stepping-stones to donate to a trail or community group. Application--FFA Activity: Entrepreneurship business idea. Concrete product for the landscaping industry. Application--SAE Activity:

Evaluation/Student Self Evaluation, completing a stepping-stone, rubric for stepping-stones, Quiz Assessment: from questions above.

Evaluation Answer Key:

Other: