Week 1

Goals:

  1. Creating a layout explaining how the heart works
  2. Trace how blood clots form
  3. Students determine how many times their hearts beat in 1 minute and determine whether it meets the standards
  4. Learn the prevention of diseases of the cardiovascular system

Expected results

In the process of project development , students learn:

  • work with a teacher, in a group, in pairs
  • analysis and discussion of the information received
  • in the process of educational activity, communicative competence will be formed
  • learn how to conduct a survey (questionnaire)
  • learn how to build graphs (charts, etc.) based on the survey data obtained
  • independently make logical judgments and conclusions
  • knows the function of the heart
  • Knows diseases of the heart and blood vessels and knows ways of prevention

Interdisciplinary communication: 

  • Biology (human body, heart and vascular system)
  • Chemistry (practical work, assimilation of various substances into the blood)
  • Mathematics (calculation of how many times the heart beats in 1 minute and calculation of a person’s heartbeat in different states)
  • Artistic work (creation of a working layout of the heart)

Introduction

The human heart is a strong muscle pump. Every day the heart contracts and relaxes 100,000 times and pumps 7,600 liters of blood. Over 70 years of life, the average human heart contracts more than 2.5 million times.

The heart pumps blood through the circulatory system. The circulatory system is a network of elastic tubes through which blood flows to the organs and tissues of the body. The circulatory system includes the heart and blood vessels: arteries, arterioles, capillaries (the smallest vessels), venules and veins. Arteries carry oxygen-rich blood to all parts of the body. Veins carry carbon dioxide and decay products back to the heart and lungs. If all the vessels of the human body are connected together and pulled into one line, they will cover a distance of 96.5 thousand kilometers. This will be enough to encircle the earth more than 2 times. Blood carries oxygen and nutrients to all organs and tissues, including the heart itself. Metabolic products enter the bloodstream from the tissues. Metabolic products are removed by the kidneys, liver and lungs.

Links: http://heart-master.com/

Teacher’s Guide

Divide the class into three groups

Recommended at the beginning of the lesson:

Ask questions:

  • Where is the human heart?
  • What is the function of the heart?
  • What is the circulatory system in humans?
  • That’s right, let’s make a layout to understand the work of the heart

Instruction manual

Step 1. We pierce two pieces of the lid with scissors

Step 2. Cut the tubes from the system 2 pieces 3-4 cm long

Step 3. Cut out two copies of a small ball from the neck

Step 4. We attach the ball to the tube with adhesive tape (scotch tape)

Step 5. We pass through the puncture site of the lid, the uncut part should pass outside the lid, and the short one should pass from below

Step 6. Cut off the head of the system

Step 7. After we have made sure that all two tubes are standing correctly, we fix them with hot glue

Step 8. We put the cut-off head of the system on a short tube and glue it

Step 9. Take a foam ball and cut it exactly in the center, and cut out a little from part of the picture to glue the lid so that the water passes well

Step 10. We’ll glue the lid to the ball

Step 11. Take a medium-sized ball and put it on the ball

Step 12. In the second part of the foam ball, repeat exactly from 1 to 11 steps

Step 13. In a small plastic container, pour water and dye into it

Step 14. Lower the ends of the tube into the water and check by squeezing the ball

Step 15.  We connect the two parts

Step 16. To connect the two parts, we use red adhesive tape (scotch tape)

Step 17. Check how the heart works when it is completely ready