Learn Hardcore German: In jedem Kurs lerne ich etwas Neues. - In every course I learn something new.

Gender: <a class="border-b border-dotted border-blue-400 dark:border-blue-500 cursor-pointer text-inherit no-underline" href="/grammar/german/nouns/gender/overview">neuter (like das Neue , das Ding )
Case: <a class="border-b border-dotted border-blue-400 dark:border-blue-500 cursor-pointer text-inherit no-underline" href="/grammar/german/cases/accusative/functions">accusative (direct object of lerne )

in + dative = location / situation (answering wo? – where?)
- In jedem Kurs lerne ich etwas Neues.
- I am in each course (no movement into it).
in + accusative = movement into something (answering wohin? – where to?)
- Ich gehe in jeden Kurs. – I go into every course / I attend every class.

So Kurs is masculine, singular.
Dative masculine singular of jeder is jedem, so we get in jedem Kurs.

What form of jeder is jedem, and how does it decline with Kurs?

The base forms are:

For masculine Kurs, the singular forms are:

Nominative: jeder Kurs (every course) – subject
Accusative: jeden Kurs – direct object with verbs like haben, besuchen
Dative: jedem Kurs – after prepositions that take dative, like in (location)
Genitive: jedes Kurses – rather formal/rare

In the sentence, in requires dative → in jedem Kurs.

Is the word order fixed? Can I move parts of the sentence around?