Post a composite review
Unpost a composite review
Search all MERLOT
Select to go to your profile
Select to go to your workspace
Select to go to your Dashboard Report
Select to go to your Content Builder
Select to log out
Search Terms
Enter username
Enter password
Please give at least one keyword of at least three characters for the search to work with. The more keywords you give, the better the search will work for you.
select OK to launch help window
cancel help

MERLOT II


    

Peer Review


The Visible Heart

 

Ratings

Overall Rating:

4.5 stars
Content Quality: 5 stars
Effectiveness: 4.5 stars
Ease of Use: 5 stars
Reviewed: Aug 12, 2003 by Health Sciences
Overview: This animation focuses on the gross anatomy of the human heart. The model of the
heart is semitransparent, allowing you to see through the
thick cardiac muscle into the four heart chambers. These animations emphasize
the blood flow and valve actions in ?the visible heart?. The accompanying text
helps the student to understand the circulatory system and to be able to tell
unoxygenated blood (blue) from oxygenated (red) blood as well as how the heart
valves operate.
Learning Goals: The animation was developed as part of the Howard Hughes Holiday Lectures on
Science Program in 1998. The goal is to allow students to visualize to blood
flow through the heart chambers and its control by valve action.
Target Student Population: Secondary to graduate school can profit from the learning object. The material
was developed for students at the secondary level.
Prerequisite Knowledge or Skills: Some preparatory work on the heart structures and names would be useful as well
as an overview of the connections to the respiratory system. The accompanying
lectures are contain excellent material
Type of Material: This learning object is comprised of seven animations with accompanying,
printable text. The animations may be rotated and the scale altered, (zoom in).
The graphics may be played as a continuous loop or stepped through.
Recommended Uses: The animation was developed as part of the Howard Hughes Holiday Lectures on
Science Program in 1998. The goal is to allow students to visualize to blood
flow through the heart chambers and its control by valve action.
Technical Requirements: The material is handled on all current major browser with Flash and Quicktime
plug-ins on PC or Mac computers

Evaluation and Observation

Content Quality

Rating: 5 stars
Strengths: Produced by thr Howard Hughes Medical Institute by the team of Liu, Seidman,
Amagai and Keller, the content is authorative.
Concerns: While outside the goals of the specific learning object, seeing the actions in
conjunction of the heart cycle, EKG, heart sounds and the surface anatomy of the
heart would complete a fantastic learning object.

Potential Effectiveness as a Teaching Tool

Rating: 4.5 stars
Strengths: The valve action, mitral and tricuspid in particular is elegantly shown.
Too, the overall high quality of the unit.

Could be used in lecture where instructor voice and development would be useful
and as a tutorial or review use. Question on flow and valve action, heart
section coordination should come easily.

Blood flow, colour coded for oxygenation and valve action is clear
Concerns: While stepping through the frames can be done, the loops do play rapidly.

Ease of Use for Both Students and Faculty

Rating: 5 stars
Strengths: The site is quite intuitive to use and includes much text help. Summaries,
teacher resources and guide as well as FAQ are provided.
Concerns: None

Other Issues and Comments: