Wieteke Holthuijzen
@explorerwieteke.bsky.social
Science Content Creator at Khan Academy
PhD Candidate at the University of Tennessee, Knoxville
avid birder | hot sauce connaisseuse | restoration ecologist
PhD Candidate at the University of Tennessee, Knoxville
avid birder | hot sauce connaisseuse | restoration ecologist
Reposted by Wieteke Holthuijzen
🚨 Big news: Our STEM courses just got an upgrade.
Whether you're teaching, learning, or doing both—these updates are for YOU.
And yes... it’s all 100% free. 💙 Explore now: www.khanacademy.org?utm_source=b...
Whether you're teaching, learning, or doing both—these updates are for YOU.
And yes... it’s all 100% free. 💙 Explore now: www.khanacademy.org?utm_source=b...
July 28, 2025 at 4:17 PM
🚨 Big news: Our STEM courses just got an upgrade.
Whether you're teaching, learning, or doing both—these updates are for YOU.
And yes... it’s all 100% free. 💙 Explore now: www.khanacademy.org?utm_source=b...
Whether you're teaching, learning, or doing both—these updates are for YOU.
And yes... it’s all 100% free. 💙 Explore now: www.khanacademy.org?utm_source=b...
Reposted by Wieteke Holthuijzen
Teaching high school biology? Don’t start from scratch this year.
Khan Academy has you covered with:
🧪 Real-world science activities
📘 Easy-to-follow unit guides
💻 Interactive simulations
Learn more: blog.khanacademy.org/how-to-teach...
All free, thanks to the Amgen Foundation.
Khan Academy has you covered with:
🧪 Real-world science activities
📘 Easy-to-follow unit guides
💻 Interactive simulations
Learn more: blog.khanacademy.org/how-to-teach...
All free, thanks to the Amgen Foundation.
How to Teach High School Biology This Year—Without Starting from Scratch
New year, new tools. Make biology engaging and effective with Khan Academy’s free NGSS-aligned hands-on activities, unit guides, and interactive simulations—designed for real classrooms.
blog.khanacademy.org
July 22, 2025 at 3:11 PM
Teaching high school biology? Don’t start from scratch this year.
Khan Academy has you covered with:
🧪 Real-world science activities
📘 Easy-to-follow unit guides
💻 Interactive simulations
Learn more: blog.khanacademy.org/how-to-teach...
All free, thanks to the Amgen Foundation.
Khan Academy has you covered with:
🧪 Real-world science activities
📘 Easy-to-follow unit guides
💻 Interactive simulations
Learn more: blog.khanacademy.org/how-to-teach...
All free, thanks to the Amgen Foundation.
Hey teacher friends! Looking for engaging, meaningful, hands-on science activities? Check out all of our science activities for biology, chemistry, and physics on Khan Academy! Plus, each activity is anchored in a real-world phenomenon and includes student and teacher guides for easy implementation.
📥 These quick, hands-on lessons bring real-world science into your classroom—no extra prep needed. Here's how:
July 17, 2025 at 2:25 PM
Hey teacher friends! Looking for engaging, meaningful, hands-on science activities? Check out all of our science activities for biology, chemistry, and physics on Khan Academy! Plus, each activity is anchored in a real-world phenomenon and includes student and teacher guides for easy implementation.
Come join us at the next Alfred Russel Wallace series by the Society of Island Biology @islandbiology.bsky.social with Sandra Nogué @sandranogue.bsky.social! 🏝️
Everyone is welcome! Please register (for free!) here: forms.gle/mtgKDQqC9ad2...
Everyone is welcome! Please register (for free!) here: forms.gle/mtgKDQqC9ad2...
Alfred Russel Wallace Seminar
Temporal dynamics of island biodiversity
Dr. Sandra Nogué Bosch
Researcher at CREAF, Centre de Recerca Ecològica i Aplicacions Forestals
Universitat Autònoma de Barcelona
Wednesday June 11th 2025: 1...
forms.gle
June 2, 2025 at 2:11 PM
Come join us at the next Alfred Russel Wallace series by the Society of Island Biology @islandbiology.bsky.social with Sandra Nogué @sandranogue.bsky.social! 🏝️
Everyone is welcome! Please register (for free!) here: forms.gle/mtgKDQqC9ad2...
Everyone is welcome! Please register (for free!) here: forms.gle/mtgKDQqC9ad2...
Reposted by Wieteke Holthuijzen
Just reposting this which I think is the most gorgeous thing I have seen in my career - a critically endangered orange-bellied parrot feeding on a carpet of daisies after an ecological burn. This was the first time they’d had the chance to feed naturally in 15y and was wonderful to witness
😭😭😭🧡🧡🧡🧡
😭😭😭🧡🧡🧡🧡
May 17, 2025 at 8:47 AM
Just reposting this which I think is the most gorgeous thing I have seen in my career - a critically endangered orange-bellied parrot feeding on a carpet of daisies after an ecological burn. This was the first time they’d had the chance to feed naturally in 15y and was wonderful to witness
😭😭😭🧡🧡🧡🧡
😭😭😭🧡🧡🧡🧡
Reposted by Wieteke Holthuijzen
🚨 Biology teachers! Have you explored our new FREE resources yet?
March 24, 2025 at 4:33 PM
🚨 Biology teachers! Have you explored our new FREE resources yet?
Check out our brand-new resources for high school biology (NGSS), including hands-on science activities that bring science to life and simulation-based exercises! 🌿
Biology teachers, we heard you! 🧬🔬
We’re introducing new interactive biology resources—made possible by @amgen.bsky.social—to help bring science to life in your classroom.
✅ Hands-on activities
✅ Interactive simulations
✅ Easy integration with Google Classroom
Start exploring! 👇
We’re introducing new interactive biology resources—made possible by @amgen.bsky.social—to help bring science to life in your classroom.
✅ Hands-on activities
✅ Interactive simulations
✅ Easy integration with Google Classroom
Start exploring! 👇
The Ultimate Free, Interactive Biology Teaching Tools for High School Classrooms
Engage your high school students with free, interactive biology teaching tools from Khan Academy! Explore real-world investigations, simulation-based exercises, and NGSS-aligned activities designed to...
blog.khanacademy.org
March 5, 2025 at 5:23 PM
Check out our brand-new resources for high school biology (NGSS), including hands-on science activities that bring science to life and simulation-based exercises! 🌿
Reposted by Wieteke Holthuijzen
🌕 January Staff Pick of the Month!
Ever wondered how lunar eclipses happen? This lesson explains it all with stunning animations of how the Earth, moon, & sun align. 🌑🌎
📚 Dive in: www.khanacademy.org/science/midd...
Ever wondered how lunar eclipses happen? This lesson explains it all with stunning animations of how the Earth, moon, & sun align. 🌑🌎
📚 Dive in: www.khanacademy.org/science/midd...
January 8, 2025 at 4:56 PM
🌕 January Staff Pick of the Month!
Ever wondered how lunar eclipses happen? This lesson explains it all with stunning animations of how the Earth, moon, & sun align. 🌑🌎
📚 Dive in: www.khanacademy.org/science/midd...
Ever wondered how lunar eclipses happen? This lesson explains it all with stunning animations of how the Earth, moon, & sun align. 🌑🌎
📚 Dive in: www.khanacademy.org/science/midd...
Hey teacher friends!
Looking for high-quality, ready-to-use science activities for middle or high school? @khan-academy.bsky.social has you covered with a collection of FREE science activities! There are 33 activities currently available here, with more coming soon:
www.youtube.com/watch?v=8KGx...
Looking for high-quality, ready-to-use science activities for middle or high school? @khan-academy.bsky.social has you covered with a collection of FREE science activities! There are 33 activities currently available here, with more coming soon:
www.youtube.com/watch?v=8KGx...
Introduction to hands-on science activities
YouTube video by Khan Academy
www.youtube.com
November 19, 2024 at 8:34 PM
Hey teacher friends!
Looking for high-quality, ready-to-use science activities for middle or high school? @khan-academy.bsky.social has you covered with a collection of FREE science activities! There are 33 activities currently available here, with more coming soon:
www.youtube.com/watch?v=8KGx...
Looking for high-quality, ready-to-use science activities for middle or high school? @khan-academy.bsky.social has you covered with a collection of FREE science activities! There are 33 activities currently available here, with more coming soon:
www.youtube.com/watch?v=8KGx...