Here are some more ideas to get you started.
Engage the fives senses (whenever possible)
Make leaf prints ( paint the leaf and press the print into the journal)
Make leaf rubbings
Trace the items they are looking at
Add leaves into the journal using tape
Count the birds/squirrels/insects etc.
Measure as much of the phenomena as the students can using non standard and standard units of measurement.
Here is a downloadable lesson from John (Jack) Muir Laws and Emilie Lygren book: How to Teach Nature Journaling. All resources shared with permission. "I Notice..., I Wonder...?, It Reminds me of..."
GIVING FEEDBACK here is a fantastic resource from Jack and Emilie
NOTE: You are encouraged to spend time in the outdoors Nature Journaling. However, you can also bring nature inside, look out your wonder window, have a refrigerator Safari or even observe a house plant or pet.
Does the temperature feel cold, cool, warm or hot?
What should I wear today to be prepared for the weather?
Does the temperature change from the morning to the afternoon to night time? Why do you think this happens?
Using a journal to document your observations for one week, don't forget to draw a picture of what you chose to wear that day.
Leaves are falling off trees
Buds are starting to sprout
There are a lot of insects or there are no insects
The flowers are big and blooming or there are no flowers
The animals are very active or there are hardly any animals
Anything else you observe that the seasons/weather are affecting
NOTE: This can be used with the Nature Journaling activity at the top of the page.