Tyler Hollow

Welcome to Mr. Tyler Hollow’s class!

I am very excited for my tenth year at Helena High School. I really enjoy the students at Helena High School and appreciate their willingness to work hard and be involved. I grew up in Helena then moved to Idaho and attended The College of Idaho and earned a Biology degree. After graduation I worked professionally in the Northwest as a Fish Technician, Wolf Biologist, a wildlife guide, and as an environmental consultant. I have taught Science to High School students in Meridian, Idaho and Victor, Montana. I recently graduated with a Masters in Science Teaching from Montana State University.

I teach Biology, Biomed 4, and AP Research. Biomed 4 is an upper level research class in the Health Career Pathway while AP Research is an elective credit and one of two classes in AP Capstone. I am passionate about science and research, and excited to work with students in Science Technology Engineering and Math (STEM) fields.

Posted on December 9, 2019

Biology Week-at-a-Glance for Monday, December 9th, 2019

Monday – Bell Ringer, Finish Nutrition activity and write conclusion.
Tuesday – Bell Ringer, read pages 45-49 in text and then take notes.
Wednesday – Bell Ringer, conduct Catalase Lab
Thursday – Bell Ringer, discuss Catalase Lab and then review for test.
Friday – Biochemistry Unit Test.

Have a Great Week!

Posted on December 2, 2019

Biology Week-at-a-Glance for Monday, December 2, 2019

Welcome back, I hope you had a great break! We are still in the Biochemistry Unit.

Monday – Bell Ringer, pH introduction activity, start Acids, Bases and pH lab.
Tuesday – Bell Ringer, Finish Acids, Bases and pH lab.
Wednesday – Bell Ringer, discuss Acids, Bases and pH lab, start the Buffer Lab.
Thursday – Bell Ringer, Finish Buffer Lab
Friday – Bell Ringer, Macromolecule Jigsaw Activity

Posted on November 26, 2019

Biology Week-at-a-Glance for Monday, November 25th

This is a short week. I hope you all have a wonderful vacation.

Monday: Bell Ringer, Water Property notes, Read water article and annotate.
Tuesday: Quiz on Chemistry, Summarize the water article.

Wednesday – Friday: No School

Posted on November 19, 2019

Biology Week-at-a-glance for Monday, November 18, 2019

Monday – Bell Ringer, Biochemistry Vocabulary for Chapter 2
Tuesday – Bell Ringer, Atomic Basic activity of atom models.
Wednesday – Bell Ringer, Ionic Bond Lab
Thursday – Bell Ringer, Wrap-up Ionic Bond Lab, then introduce water properties.
Friday – Bell Ringer, water properties

I hope you have a great week!

Posted on November 13, 2019

Biology Week-at-a-Glance for Monday, November 11, 2019

Monday – Bell Ringer, Finish Human Impact Presentations
Tuesday – Bell Ringer, Pre-Test Biochemistry, Chemical Composition of Human Body
Wednesday – Bell Ringer, Finish Chemical Composition of Human Body
Thursday – Bell Ringer, Chemistry Concept Map
Friday – Quiz, Atomic Basics, 10-5-Jive on Element

Have a great week!

Posted on November 6, 2019

Biology Week-at-a-Glance for Monday, November 4th, 2019

Biology is in the last week of Ecology Unit. Our next unit of study is Biochemistry.

Monday – Bell Ringer, Ecology Test Review due Thursday.
Tuesday – Bell Ringer, Human Impact Project which will be presented on Friday.
Wednesday – Bell Ringer, continue work on Human Impact Project.
Thursday – Ecology Test, then continue work on Human Impact Project
Friday – Bell Ringer, Present your Human Impact Project.

Have a good week.

Posted on October 29, 2019

Biology Week-at-a-Glance for Monday, October 28th, 2019

Monday – Turn In Nitrogen Cycle Project (present for extra credit), Ecological Succession Activity.
Tuesday – Film on Ecological Succession, then finish Succession Activity.
Wednesday – Modeling Lynx and Hare Population Dynamics Lab.
Thursday – Notes on Populations.
Friday – Analyze Population Graphs.

Posted on October 22, 2019

Biology Week-at-a-Glance for Monday, October 21, 2019

Monday – Bell Ringer, Finish Algae Lab Write-up
Tuesday – Bell Ringer, Read Page 84 and take notes, Biogeochemical Cycle Model (Nitrogen)
Wednesday – Quiz on Chapter 3, Wrap-up Biogeochemical Cycle Model
Thursday – Bell Ringer, Notes on Symbiosis
Friday – Bell Ringer, Good Buddies Simulation

Posted on October 14, 2019

Biology Week-at-a-Glance for Monday, November 14th, 2019

This week is very short due to Fall Break!

Monday – Bell Ringer, Lab Preperation, Lab: Effects of Fertilizer on Algae.
Tuesday – Bell Ringer, Film Guide on Keystone Species
Wednesday – Bell Ringer, Lab: Effects of Fertilizer on Algae
Thursday and Friday is Fall Break!

Have a great Fall Break!

Posted on October 7, 2019

Biology Week-at-a-Glance for Monday, October 7th 2019

Monday – Bell Ringer, Notes on food web and energy flow
Tuesday – Bell Ringer, Review food web and continue notes, Case Study on Kokanee Salmon
Wednesday – Bell Ringer, Case Study on Kokanee Salmon
Thursday – Bell Ringer, Case Study on Kokanee Salmon Summary
Friday – Bell Ringer, Lab: The Effects of Fertilizer in a Estuary.”

I hope you have a great week.

Science Circus

Students have an opportunity to participate at Science Circus this year.  Science Circus attracts over a thousand people each year to Helena High and students showcase amazing Science phenomenon.  Earth Science students will develop their own project in class for a project grade.  They will also be given the opportunity to present their project at Science Circus for extra credit.  See documents for more information.

Click Here for Research and Current Event Resources

Here you will find great articles to read for completing an Earth Science current event.  These resources will also be helpful for researching Earth Science related topics for projects during the year.

Biology Unit 1 Nature of Science

In this introductory unit, students will explore the process of science. Students will use scientific tools to investigate living organisms. Students will understand the difference between scientific theories and scientific laws and improve upon their analysis skills. Skill learned in this unit will be used throughout the year.

Biology Unit 4 Cells

Biology Unit 5 Genetics

Biology Unit 6 Evolution and Classification

Biology Unit 7 Microorganisms

Biology Unit 8 Plants and Animals

Earth Science Unit 1 Nature of Science Unit

Students will engage in Science and Engineering Practices so they think like scientists and work like scientists.  Student will apply the Metric System and Measuring to investigate scientific questions through experimental design.

Earth Science Text Resources: Chapter 1 Introduction to Earth Science

Earth Science Unit 4 Weather and Storms Unit

Students will investigate weather patterns, cloud formations, storms  and effects of difference of pressure. Students will explore storms and the effect of climate change on these systems.

Earth Science Text Resources: Chapter 18. Moisture, Clouds and Precipitation; Chapter 19. Air Pressure and Wind; and Chapter 20. Weather Patterns and Severe Storms.

Earth Science Unit 5 Astronomy Unit

Astronomy is the study of the area outside of earth’s atmosphere.  Students will investigate craters on moon and the reason for phases of the moon.  Students will explore the universe’s laws and scientific theories such as gravitational attractions effects on planets.  Students will study star composition and technology that has led to the understanding of our universe.

Earth Science Text Resources: Chapter 22. Origin of Modern Astronomy; Chapter 23. Touring our Solar System; Chapter 24. Studying the Sun; and Chapter 25. Beyond our Solar System.

Earth Science Unit 6 Plate Tectonic Unit

Students will explore Earth’s interior and the dynamics of plate movement.  Students will investigate different types of plate boundaries and their resulting features.

Earth Science Text Resources:Chapter 8. Earthquakes and Earth’s Interior; and Chapter 9. Plate Tectonics

Earth Science Unit 8 Geologic Time Unit

Geologic Time Unit will take the students on a Journey Back into Time and investigate Relative Time, Absolute Time and the figure out how Scientists use Radiometric  Dating to create the Geologic Time Scale.

Earth Science Text Resources:Chapter 12. Geologic Time; and Chapter 13. Earth’s History

Upcoming Events

  • March 5, 2020 - March 6, 2020

    Intermountain Junior Science and Humanities Symposia (IJSHS) Program

    Please see this link for recognizing students in research held March 5-6 at Montana Tech. Nominations are due Friday, December 13th 2019.


  • March 20, 2020 - March 21, 2020

    Science Circus 2020

    Science Circus is here Friday and Saturday, March 20-21.

    Friday 6:00 p.m. to 9 p.m.
    Saturday 11:00 a.m. to 3:00 p.m

    Biology Students can present their Science Circus project they are working on this week at Science Circus for Extra Credit.

  • November 28, 2019

    Envirothon Club

    Come join Envirothon in Ms. Pichette’s classroom (#213)Thursday during lunch. Envirothon is a competition in Aquatics, Range, Forestry, Wildlife and Soils. If you are interested in the outdoors, enjoy nature, or want to work in the Natural Resource field then Envirothon is for you.

    Contact Mr. Hollow or Ms. Pichette if you are interested.

  • March 30, 2020 - March 30, 2020

    University of Montana Science Fair

    Participate in this year’s University of Montana Science Fair is on a Monday, March 30th, 2019.  Go to this page to check it out:  University of Montana Science Fair

  • March 5, 2020 - March 5, 2020

    Montana Tech Science Fair

    Participate in this year’s Montana Tech Science Fair Thursday, March 5th, 2020.  Go to this page to check it out:  http://institute.mtech.edu/science-fair

Tyler Hollow's Schedule

  • Period 1


  • Period 2


  • Period 3


  • Period 4

    Biomed 4/AP Research

  • Period 5

    Study Hall

  • Period 6


  • Period 7