- Science
Mission Objectives
Describe the structures of the heart
Explain how valves stop backflow
Describe the route blood travels around the body
Save files related to this lesson
Words and meanings to learn
valves
structures which prevent backflow, these are found in the heart and veins.
pacemaker (sinoatrial node)
a collection of cells which regulate the heartbeat.
aorta
the largest artery in the human body, responsible for carrying oxygenated blood from the heart to the rest of the body.
double circulatory system
when blood enters and exits the heart twice in the same cycle.
semi lunar valve
the valves which stop blood flowing back into the heart after it has been ejected into the pulmonary artery and aorta.
Samantha is an accomplished science educator with over 15 years of leadership experience and a strong background in scientific analysis. She has a proven record of leading departments effectively, improving practice, and working collaboratively with stakeholders.
In her current work, Samantha embeds evidence-informed pedagogical principles such as retrieval practice, clear modelling, and effective sequencing to support high-quality curriculum design and professional development. She draws on assessment insight and common misconceptions to help teachers secure strong student understanding.
She is a former Head of Chemistry and Sixth Form Tutor at Ilkley Grammar School, with extensive Key Stage 4 and 5 experience, and an AQA examiner, giving her valuable insight into assessment standards and exam requirements.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket.
Expert film
Mission assignment film
Address
Developing Experts Limited
Exchange Street Buildings
35-37 Exchange Street
Norwich
NR2 1DP
UK
Phone
01603 273515
Email
[email protected]
Copyright 2026 Developing Experts, All rights reserved.
Unlock expert-designed lessons, resources, and assessments tailored for educators. No credit card required.
Claim Your Free Trial →