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Math Lessons

Using the Hudson River

Students waving at a ship on the river
Students can track boat movement on the Hudson River to
practice addition and subtraction skills.

These lessons use Hudson River data to construct word problems that require mathematics skills for their solution. A number of the lessons require students to interpret information in tables or bar graphs. Several also build geography skills through use of Hudson River Miles, a system which uses mile numbers to locate points on the river. Be sure to download a copy of the "Hudson River Miles Map" for these lessons.

The lessons offer a range of difficulty. "On the Trail of the Blue Crab," for example, focuses on subtraction skills using numbers no larger than two digits. "On the Trail of the Hudson's Migratory Fish," on the other hand, requires addition of as many as three figures, some of them three digit numbers. In "Tens! Hundreds!! Thousands!!! Of Tons," students must calculate means using numbers in the tens of thousands.

The lessons' content links to subjects covered in other offerings from the Hudson River Estuary Program. "On the Trail of the Blue Crab," for instance, links to the English Language Arts reading "Blue Claw!" while "Tracking the Salt Front" links to the science lesson "Finding the Salt Front."

On the Trail of the Hudson's Migratory Fish

Students practice addition and subtraction skills by tracking the movements of migratory fish of the Hudson River estuary. For practice reading numbers from a table, Growing Up as a Striped Bass (PDF) 316 KB from our collection of lessons for Kindergarten through Third Grade relates the size of fish at different ages to the size and age of young students.

On the Trail of the Blue Crab

Students practice subtraction skills by tracking the movements of blue crabs in the Hudson River estuary.

Tracking the Salt Front

In this two part lesson, students use math skills and bar graphs of salinity data for the Hudson estuary to understand the movements of the salt front in response to storms and other weather events.

Add & Subtract with Hudson River Shipping

Students practice addition and subtraction skills by following the movements of ships, tugboats, and barges on the Hudson River estuary.

Big Boats Up The River

Designed for younger students (Grades 2-3), this lesson requires students to interpret a table of information about ships and cargoes handled at the Port of Albany on the Hudson.

Tens! Hundreds!! Thousands!!! Of Tons

Aimed at Grade 5 and older students, this lesson presents data about the tons of cargo handled at the Port of Albany, and requires students to use estimation and to calculate means using numbers as big as tens of thousands.

Mathematics Lesson Package

Teacher and student sections for all of the lessons above in one PDF file, paginated to allow back to back copying.

Hudson River Miles Map (PDF) 192 KB *Note: This is set for legal (8.5 inches x 14 inches) paper to maximize legibility, but it will work on letter (8.5 inches x 11 inches) paper as well. To obtain legal size copies, you may need to use the options in your computer's print menu to specify printout on legal size paper.