The Bones of the Body / Objectives: Students will be able to use their knowledge about the bones of the body in a math lesson
Standard 7 Health
Practice Healthy Behavior / 3-5.H.7.1.3 Demonstrate a variety of behaviors that avoid or reduce health risks
Class discussion.Bones produce blood cells and store calcium and other minerals for use in the body. How can we keep our bones healthy so that they can produce blood cells and store calcium for us?
Students will design small poster in pairs to show how to keep bones healthy.
Standard 1 Physical Education Skilled Movement / 3-5.PE.1.1.2 Demonstrate mature movements using concepts of effort, relationships, and body and space awareness.
Class discussion. Students write reflection in daily class book about how bones are able to move and why they can’t move in all directions.
Materials / Hand Out – Skeleton with bones identified as well as the bones of the ear
Worksheet on Classification of Bones
Worksheet on Percents
Summative Assessment
Connection / We have done comparisons before when we compared the probabilities involving students from this school
Explicit Instruction / Today you will not only use the names of the bones in the body and the interesting facts about them in a math lesson on percentages and classification.
In pairs, students will create percent problems involving the bones of the body. They can use location, number, size or other categorical ideas about bones.
Guided Practice / Here is a list of all the names of the bones in the body. You will first put them in alphabetical order.
Then you will put them in order by their location in the body
Finally you will place them in categories by size. You’re your group will design a classification system of your own.
Independent Practice / (whole class discussion)
Without bones our bodies would be like jelly fish. We would have no shape. Can you think of other “basic design” uses for our bones?
Students will do a quick write on the reasons for our bones.
Group Wrap Up / Students will complete an exit ticket giving a brief description of the day’s lesson about bones.

INFORMATION SHEET

A newborn baby has 350 bones.

Many of these bones fuse so a twenty five year old adult has 206 bones.

One out of twenty humans has an extra rib and these people are more likely male than female. Sixteen percent of Eskimo men have an extra rib.

Arms and hands / 60
Ears / 6
Hips / 2
Legs and feet / 58
Pectoral girdle / 4
Ribs / 24
Skull / 22
Sternum / 3
Throat / 1
Vertebrae / 26

EXAMPLE PROBLEMS:

1. What per cent of an adult’s bones are hip bones?

2. What is the relationship between the number of bones a baby has and the number of bones an adult has.

3. If a person loses an entire leg in an accident, what percent of their bones will they have lost?

Assessment on Bones of the Body

Label the bones on the picture below

What is the ratio of leg bones (not including the feet) to arm bones (not including the hands)?

Determine two other ratio problems involving bones. Be sure that they are simplified.