Note: These evaluations have been made in accordance to Dudeney & Hockly's book "How to Teach English with Technology" and with the aid of NotebookLM.

Website: Centers for Disease Control and Prevention (CDC) - Adolescent and School Health

https://www.cdc.gov/healthy-youth/index.html

Accuracy: The website is an official U.S. government site of the Centers for Disease Control and Prevention (CDC), ensuring high authority and expertise. Its content is reliable and factually correct, supported by a ".gov" domain, HTTPS security, and the use of data like the Youth Risk Behavior Surveillance System (YRBS).

Currency: The website is highly current, with explicit update dates for various sections. For example, the "Data Summary & Trends Report" is dated Jan. 14, 2025, and "Mental Health" is dated Nov. 29, 2024, indicating active and regular maintenance.

Content: The site offers a broad and stimulating range of topics relevant to adolescent health, including Mental Health, Supporting LGBTQ+ Youth, and Health Disparities. It aims to promote well-being and reduce health risks, providing practical information like "Conversation Tips" and "Healthy Youth Parent Resources".

Functionality: The website is well-organized, with a clear menu structure for navigation and featuring categories like "What Works in Schools" and "Data and Statistics". Its design is aesthetic, with soft colours and images. The loading speed is fast and there are no broken links.

Exercises: British Council - Learn English Teens - Vocabulary → A1-A2 vocabulary → Health

https://learnenglishteens.britishcouncil.org/vocabulary/a1-a2-vocabulary/health

Accuracy:  In spite of the author of these exercises not being listed, the activities use correct vocabulary items and there are no mistakes in the use of English. Additionally, this is a website designed by the British Council specifically for free-use ESL activities, which gives it credibility.

Currency: The oldest comment on the page was made in July, 2018, which means that this was likely when the series of exercises was published. It continued to be used until the current year of 2025, which means that these exercises are still up to date.

Content: The content is specifically designed for English language learners at A1-A2 levels, focusing on "vocabulary exercises to help learn words to talk about health". It features interactive "matching" and "gap fill" exercises, along with a stimulating discussion prompt.

Functionality: The site is clearly organized with simple navigation ("Home," "Vocabulary," "Health") and distinct sections for different exercise types. The downloadable worksheets have relatively small file sizes (e.g., 183.51 KB) and are quick to load, as are the activities on the website. The colors used and small images also add to the good design of the page. 

Article: FactMonster – Health & Body

https://www.factmonster.com/math-science/health/fitness-nutrition/good-nutrition-is-important

Accuracy:  The article is attributed to Mark Hughes and the Factmonster Staff, part of Sandbox Learning which offers educational resources. It provides nutrition information, including recommendations from the American Academy of Pediatrics, suggesting a focus on factual correctness. The site also states it is COPPA-compliant, indicating a commitment to child safety.

Currency:  The article was last updated on February 21, 2017. While the overall site copyright extends to ©2022 Sandbox Networks Inc., this specific content is not current compared to the CDC's regularly updated health information.

Content: The content is stimulating for learners, explaining why food is needed for energy and offering practical tips to distinguish healthy from unhealthy foods. It provides clear examples of healthier alternatives and addresses common questions like the healthiness of fruit juice.

Functionality: The material features a clear hierarchical path and a Related Links section, making for easy navigation. Additionally, the site is quick to load, as it only features text, a few hyperlinks and a single image.

Video: AI-powered study finds sleep is No. 1 predictor for teen mental illness

https://www.youtube.com/watch?v=x74sRnLdBBQ

Accuracy:  The video features parenting expert Dr. Cheryl Ziegler discussing a study powered by AI. The content is reliable and factually presented, highlighting sleep disturbance as the number one predictor for teen mental illness, even over traumatic events or family history.

Currency:  The video was uploaded on June 30, 2025, very close to the development of this PLE. Additionally, the health information discussed, such as sleep recommendations for different age groups, is relevant and appears current for general health guidelines.

Content: The content is highly stimulating and relevant for teens, parents, and educators, focusing on the crucial link between sleep and mental health. It clearly explains sleep disturbance and provides recommended sleep hours, also addressing anxiety triggers.

Functionality: This is a 5-minute YouTube video, which shouldn't give any problems playing. However, in case of no Wi-Fi access in the school, it can also be downloaded beforehand by the teacher.

Article: Why we should sit less

https://www.nhs.uk/live-well/exercise/why-sitting-too-much-is-bad-for-us/

Accuracy:  The article is published by NHS.uk, an official UK government health service website, indicating a highly authoritative source. Its content is reliable and factually presented, referencing "increasing evidence" and "UK Chief Medical Officers' Physical Activity Guidelines".

Currency:  The article is very current, having been last reviewed on December 29, 2022, with the next review scheduled for December 29, 2025. This demonstrates active and regular maintenance of the information.

Content: The content is highly stimulating and relevant, focusing on the health risks of prolonged sitting and offering practical "Tips to reduce sitting time" for various age groups, from under-5s to older people. It explains how inactivity affects metabolism and provides clear examples of healthier habits.

Functionality: The article is well-structured and easy to follow. It only includes text and hyperlinks.

Article: What To Know about Teens and Sleep

https://www.thensf.org/what-to-know-about-teens-and-sleep/

Accuracy: The content is published by the National Sleep Foundation (NSF), indicating an authoritative source. It provides reliable and factually presented information on teen sleep, referencing NSF's own recommendations and polls. The site also includes a disclaimer that the information is for educational purposes and not a substitute for medical advice.

Currency:  The article was last updated on March 7, 2024. It also refers to the NSF’s 2024 Sleep in America® Poll, demonstrating that the information is highly current and regularly maintained.

Content: The content is highly stimulating and relevant, focusing on the critical importance of sleep during adolescence for physical, mental, and emotional development. It explains teens' unique sleep needs and circadian rhythms, discusses influences like screen time and social behaviors on sleep, and offers practical tips for parents and teens to establish healthy sleep habits.

Functionality: This article is mostly comprised of text, with a few hyperlinks and a cover image, a simple and effective design.