diff --git a/README.md b/README.md
index fea9238..243df43 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# GeoSMART Curriculum Jupyter Book Site (ESS 490/590)
+# GeoSMART Curriculum Jupyter Book Site (ESS 469/569)
 
 [![Deploy](https://github.com/geo-smart/curriculum-book/actions/workflows/deploy.yaml/badge.svg)](https://github.com/geo-smart/curriculum-book/actions/workflows/deploy.yaml)
 [![Jupyter Book Badge](https://jupyterbook.org/badge.svg)](https://geo-smart.github.io/curriculum-book)
@@ -14,4 +14,4 @@ This repository stores configuration for GeoSMART curriculum content, specifical
 
 Activate the `curriculum_book` conda environment (or any conda environment that has the necessary jupyter book dependencies). Navigate to the root folder of the curriculum book repository in anaconda prompt. Run `python server.py`.
 
-The server code can take a `--no-build` flag (or `--nb` shorthand) if you don't want to build any changes you've made to the notebooks, and this can just be run from a regular terminal.
\ No newline at end of file
+The server code can take a `--no-build` flag (or `--nb` shorthand) if you don't want to build any changes you've made to the notebooks, and this can just be run from a regular terminal.
diff --git a/book/Chapter1-GettingStarted/1.1_open_reproducible_science.md b/book/Chapter1-GettingStarted/1.1_open_reproducible_science.md
index fdf1f11..8f57125 100644
--- a/book/Chapter1-GettingStarted/1.1_open_reproducible_science.md
+++ b/book/Chapter1-GettingStarted/1.1_open_reproducible_science.md
@@ -1,4 +1,4 @@
-# Open Reproducible Science
+# 1.1 Open Reproducible Science
 
 [Slides](https://docs.google.com/presentation/d/1SCrx65-Q_CB8JRMN81Uk-QniPvPE-wozRD7YDDQEapc/edit?usp=sharing)
 [Video](https://youtu.be/WeZ2vJxBuTg?si=aG1IuBNhCQnb1ljv)
\ No newline at end of file
diff --git a/book/Chapter1-GettingStarted/1.2_jupyter_environment.md b/book/Chapter1-GettingStarted/1.2_jupyter_environment.md
index 2da9c72..e42dbb2 100644
--- a/book/Chapter1-GettingStarted/1.2_jupyter_environment.md
+++ b/book/Chapter1-GettingStarted/1.2_jupyter_environment.md
@@ -1,4 +1,4 @@
-# 1.2 Jupyter Environment
+# 1.3 Jupyter Environment
 
 ## Jupyter Notebooks
 
diff --git a/book/Chapter1-GettingStarted/1.3_python_environment.md b/book/Chapter1-GettingStarted/1.3_python_environment.md
index 40f8b52..f11ed6d 100644
--- a/book/Chapter1-GettingStarted/1.3_python_environment.md
+++ b/book/Chapter1-GettingStarted/1.3_python_environment.md
@@ -1,4 +1,4 @@
-# 1.1 Python Ecosystem
+# 1.3 Python Ecosystem
 
 ## What do you need to run your Python code?
 - Python. Most packages work with Python3. Your laptop may already come with one. We recommend downloading Anaconda, which comes with a version of python, and aliasing $python$ to the binary executable python specific to conda.
diff --git a/book/Chapter1-GettingStarted/1.5_version_control_git.md b/book/Chapter1-GettingStarted/1.5_version_control_git.md
index 10a745e..4305193 100644
--- a/book/Chapter1-GettingStarted/1.5_version_control_git.md
+++ b/book/Chapter1-GettingStarted/1.5_version_control_git.md
@@ -1,4 +1,4 @@
-# 1.3 Version Control & GitHub
+# 1.5 Version Control & GitHub
 
 
 ## Version Control